The Invisible Rules of Conversation

Power Connectors

Sep 2

7 min read

Nobody taught you how to know when it's your turn to talk. There was no lesson in school explaining exactly how long to pause after someone finishes a sentence, where to look when you want someone else to speak, or how to escape a conversation at a party without making it weird. Yet somehow, most of us learned the rules anyway.

And there are a lot of rules. A normal conversation feels spontaneous. Underneath it, however, two or more people are performing an astonishing amount of coordination. We're predicting when someone will stop talking, preparing responses before they're finished, interpreting fractions of a second of silence, communicating with our eyes, arranging our bodies into tiny conversational territories, and constantly repairing misunderstandings.

Most of this happens without us consciously thinking about any of it, which is probably for the best. Imagine trying to have a conversation while actively calculating all this shit.

Your Brain Is Already Planning What to Say

Consider something incredibly ordinary: “What did you do this weekend?” Someone answers. When they finish, you respond.

Nothing remarkable there, except for one small problem: you're too fast.

In ordinary conversation, the gap between one person finishing and another beginning is often around 200 milliseconds. That's roughly the blink of an eye. But producing speech takes considerably longer. Research suggests our brains can need around 600 milliseconds or more just to prepare even a simple spoken response.

So unless humans possess a tiny conversational time machine, we aren't waiting until the other person finishes before beginning the process of responding. We're doing it while they're still talking.

As we listen, our brains are simultaneously processing what someone is saying, predicting where their thought is going, figuring out what we might say next, and estimating when they're going to shut up so we can launch our response at approximately the right moment. Research has even detected brain activity associated with anticipating the end of a predictable conversational turn more than a second before the speaker actually stopped talking.

Which means, technically, “I was listening. I was just thinking about what I wanted to say” may not always be the bullshit excuse it sounds like. Sometimes your brain really is doing both.

Half a Second of Nothing Can Say a Lot

Now imagine someone asks: “Do you want to come?” You immediately answer: “Sure.” Perfectly normal.

Now imagine the same question, followed by a pause. “Do you want to come?” ... “Sure.”

Same word. Very different answer.

Humans are remarkably sensitive to the timing of conversation, and delays of only a fraction of a second can change what we think a response means. When an answer takes noticeably longer than expected, we start anticipating disagreement, hesitation, rejection, or a qualification. Sure becomes Suuure...

Nobody has actually said no. Nobody has even changed the word being used. The silence did all the work.

This is one reason delayed phone and video calls can feel so strangely uncomfortable. In experiments where researchers secretly introduced a one-second delay into conversations between strangers, participants reported feeling less connected to one another.

One second. The other person didn't suddenly become less interesting. They didn't insult anyone's mother. The timing was simply wrong, and some part of the social machinery noticed.

Turns out your shitty internet connection may have been ruining your personality this whole time.

Congratulations, Dave. You're Talking Now.

Things become even stranger when a third person enters the conversation. In group conversations, researchers have found that gaze can help determine who speaks next. The person currently talking can effectively nominate the next speaker simply by looking at them as their turn ends.

No announcement is required. No one says, Susan, the floor is yours. They just look at Susan. And Susan knows.

But Susan also has options. Research suggests that the person being looked at can redirect their gaze toward someone else, effectively passing the conversational baton. Susan looks at Dave. Apparently this is Dave's problem now.

Think about how absurdly sophisticated that is. Three people can negotiate who gets the next turn without saying a single word about who gets the next turn. They're having one conversation with their mouths and another conversation about the conversation with their eyes.

And most of us never notice it happening.

You Can Put Up a KEEP OUT Sign With Your Feet

The invisible rules aren't limited to speaking. Sometimes we're communicating before anyone even joins the conversation.

Watch a group of people talking at an event and you'll notice they tend to arrange themselves into shapes. Two people might face each other. Three might form a loose triangle. A larger group may create a circle.

Researchers studying social interaction have a name for these arrangements: F-formations. People naturally position themselves around a shared conversational space, sometimes called the o-space, that everyone in the interaction can access.

Nobody gets out a tape measure. We just... do it.

And the shape matters. Imagine three people standing in a tight triangle, shoulders angled inward. Now imagine the same three people standing in more of a horseshoe, leaving an obvious open side. If you're approaching those groups, you probably don't need anyone to tell you which one is easier to join.

You're reading geometry.

The first group may be having a perfectly friendly conversation, but their bodies have accidentally constructed a tiny human fortress. The second group has physically created room for another person before anyone has actually invited one in.

Which means one of the most powerful social signals in a crowded room may have nothing to do with what you're saying. Sometimes it's where your feet are pointing.

Conversation Is Constantly Breaking

For something we do all day, humans are surprisingly bad at understanding one another perfectly. Fortunately, we've also become extremely good at fixing it.

Researchers studying natural conversations across 12 languages found that people initiated some form of conversational repair roughly once every 1.4 minutes.

Think about that. What? Who? Which one? You mean Tuesday? Wait, what are you talking about? No, the other Mike.

These tiny breakdowns happen constantly. We just repair them so quickly that most disappear from memory almost as soon as they occur.

Even more interesting, researchers found broadly similar systems for conversational repair across very different languages. Apparently humanity may disagree about nearly everything, but we all needed some version of: What the hell are you talking about?

“Huh?” Might Be Practically Universal

Which brings us to perhaps the most important linguistic achievement of civilization: Huh?

Researchers examined naturally occurring conversations across languages from five continents and found remarkably similar versions of huh? serving essentially the same purpose. Something went wrong. Repeat yourself.

The researchers don't argue that huh? is an instinctive grunt humans are born making. Rather, languages appear to have converged on similar little words because they solve the same conversational problem: when communication breaks, we need something quick and easy to stop everything and request a repair.

Thousands of years of human language, and apparently one of our most useful innovations is a one-syllable noise meaning try that again. Hard to argue with the efficiency.

The Best Conversations May Not Be About What You Say

Then there's the part most of us probably notice without understanding why. Some people are simply easy to talk to.

A conversation with them moves naturally. You say something, they respond to what you actually said. They ask something else. You elaborate. They remember a detail and circle back to it later.

Other conversations feel like two people waiting for alternating opportunities to perform.

Research offers at least one clue about the difference. Studies have found that people who ask more questions, particularly follow-up questions, tend to be better liked by their conversation partners.

Not because questions are some magical networking technique. Follow-up questions signal something much simpler: I heard what you said, and I'm interested enough to keep going.

In one series of studies, people who asked more follow-up questions were perceived as more responsive and were better liked. The effect even appeared in speed dating, where people who asked more follow-up questions were more likely to get a second date.

The especially human part is that people don't seem to fully appreciate this effect beforehand. We spend enormous amounts of energy wondering whether we're interesting enough when the person across from us may be far more affected by whether we seem interested in them.

And Then We Go Home and Get It Wrong Anyway

After all of that unconscious coordination, there's one final trick our brains like to play on us. Researchers call it the liking gap.

After conversations with new people, we tend to underestimate how much the other person liked us and enjoyed talking to us. Both people can leave essentially the same conversation thinking: I liked them. I'm not sure they liked me.

Researchers have found this effect after conversations between strangers and even among new college dormmates getting to know one another over time.

It's not necessarily that people fail to signal that they're enjoying the interaction, either. We may simply be too distracted by our own internal postgame analysis to notice. Why did I tell that story? I talked too much. That joke wasn't funny. Why did I say “you too” when they told me happy birthday?

Meanwhile, the other person may be walking away performing their own equally unnecessary autopsy.

Somehow, This All Works

That's perhaps the strangest thing about conversation. It feels simple because we've spent our entire lives doing it.

But underneath even a completely ordinary exchange, humans are managing an extraordinary social system. We predict when someone will finish speaking before they finish. We interpret tiny silences. We assign speaking turns with our eyes. We build invisible boundaries with our bodies. We repair misunderstandings every couple of minutes and use tiny follow-up questions to show one another that we're paying attention.

Then we walk away and wonder whether the other person liked us.

Nobody taught us most of these rules. There is no official referee, and we're rarely conscious of following them. Yet somehow, several billion humans manage to keep taking turns.

Most of the time.

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