Why some conversations don’t need a script
What ten years, two very different jobs, and one piece of cognitive science taught me about why talk works — even when nobody’s trying to make it work.
I learned about “talk moves” in a training, early in my career, aimed at getting more out of classroom discussions and curricula. The idea was simple. There’s a small set of things a teacher can say — not content, just moves — that turn a flat discussion into a real one. Say more about that. Who can put that in their own words? Do you agree or disagree, and why? I remember writing a few of them on an index card and taping it inside my desk drawer, like a cheat sheet for something I hadn’t fully internalized yet.
Years later, I left the classroom for a while to do professional learning and instructional coaching — training and supporting teachers instead of students. Without really planning to, I brought those same moves with me. I’d sit in a room with teachers debriefing a rough day and find myself reaching for the same tools: Say more. Can you say that back to me in your own words. They worked with adults almost exactly the way they worked with fourteen-year-olds, which surprised me more than it should have.
What surprised me even more was something the talk moves didn’t fully explain. In conversations where nobody was using any moves at all — two teachers just talking in a hallway, nothing structured — something similar seemed to be happening anyway. That sent me looking for a different kind of explanation.
What’s actually happening when two people talk
The research comes from two cognitive scientists, Simon Garrod and Martin Pickering, and it starts from a strange observation: conversation should be harder than giving a speech. You can’t plan ahead, since you don’t know what the other person will say. You’re constantly switching between listening and talking. You leave out huge amounts of information and trust the other person to fill in the gaps. And yet none of this makes conversation feel hard. It’s speeches that feel hard.
Their answer is that two people talking aren’t doing all that mental work alone. Something they call interactive alignment does most of the heavy lifting automatically. The same mental system you use to understand language is the one you use to produce it — so when someone says a word to you, it becomes slightly more likely that you’ll use that same word, or the same sentence pattern, yourself, in what you say next. Multiply that across a whole conversation, and two people’s language starts drifting toward each other without either one deciding to make that happen.
The deeper point is that this alignment doesn’t stop at word choice. Garrod and Pickering argue that lining up on words and phrases pulls along something bigger: a shared mental picture of what you’re actually talking about, which they call the situation model. Two people who keep converging on the same language end up, almost as a side effect, converging on the same understanding of the situation. Over time this can even freeze into shorthand — private phrases that mean something specific to two people and would sound like nonsense to anyone else. None of it requires trying. That’s the whole point: alignment is closer to a reflex than a strategy.
What that means for talk between adults
This is where it connects back to that second room — the one full of coaches and teachers instead of students. Alignment happens fastest when trust is high and people are genuinely listening. It happens more slowly, or gets blocked, in rooms where people are guarded, where there’s history, or where one person’s job is technically to evaluate the other. That describes a lot of staff meetings and a lot of coaching relationships, especially at the start.
That’s where deliberate talk moves earn their keep. A move like repeating back what someone just said isn’t only a comprehension check, the way it usually gets taught. It’s a shortcut — a way of inviting two people’s understanding to visibly line up in a room where it might not have happened naturally yet. The move doesn’t create alignment out of nothing. It speeds up something conversation is already built to do.
Talk Move: The three-word echo
Here’s a specific version of this to try this week. The next time a colleague or student finishes a real explanation — not a one-word answer — pick out the three or four words that carried the most weight, and say those words back before adding anything of your own.
Not a paraphrase. Not “so what you’re saying is.” Just their exact words, echoed, followed by a pause or a follow-up question. For example:
Colleague: “I think the issue is that kids just aren’t used to being asked to explain their thinking out loud.”
You: “Not used to explaining their thinking out loud.” (pause) “Say more about that.”
Watch what happens next. Most people, once they hear their own words handed back to them, will expand on the idea or correct it if you got it slightly wrong. Either way, you’ve just done on purpose what conversation normally does on its own. Try it three times this week — once with a student, once with a colleague — and drop what you noticed in the comments.
Love the "move" you share here—and it's a healthy reminder to me that it's important to teach these skills in the classroom, especially for students to use in small groups and less-formal settings.
Adding it to my list for the upcoming school year of what to front load!
Like this - I will try in September, when we are back. Thanks!