A client once told me her new manager was “lovely, really supportive” — while her chin pulled up and her lips pressed flat for half a second. She had no idea she’d done it. That half-second is the whole game. Microexpressions are involuntary facial movements that surface and vanish in under half a second, usually when someone is trying to hold an emotion down. They don’t tell you what a person is thinking. They tell you that something is being managed.
Over years of coaching and FACS work, five signals come up again and again when someone is more uncomfortable than they’re letting on.
The five to watch
- The lip press. Lips roll inward and disappear for a beat. I see it most when people are biting back disagreement in a meeting they’ve decided not to fight.
- The brow flash of fear. Inner corners of the eyebrows lift and draw together — hard to fake, easy to miss. It often shows up a fraction before someone says “no, no, it’s fine”.
- The one-sided shrug. A single shoulder lifts while the words claim certainty. The body is hedging a bet the mouth won’t.
- The chin raise with a downturned mouth. A small swallow of distress, common when someone is holding composure they’re close to losing.
- The nose wrinkle. A flash of disgust — at a person, an idea, sometimes at themselves.
Here is the part most “read anyone instantly” content skips. One cue means almost nothing. I never act on a single signal. I look for a cluster, I compare it to how that person normally sits and speaks — their baseline — and I ask what just happened in the conversation to provoke it. A lip press right after you mention a deadline is information. A lip press because the room is cold is not.
And discomfort is not guilt, or lying, or dislike of you. It’s just discomfort. The kindest, most useful thing you can do when you catch one of these is not to announce it. Slow down. Ask an open question. Give the person room to say the thing their face already said.