Can you think of examples of regional body language?

I don’t mean gestures that actually have some semantic function, but more body habits or facial expressions that one picks up subconsciously and are more common one place than another.

Americans, for instance, seem much more likely than Europeans to have their mouths slightly open in idle moments (I used to notice on the Paris metro that almost invariably, people who had their mouths slightly agape turned out to be Americans).

And in Texas (I’m not sure how far this extends) guys would often hunker as a resting posture in casual conversation (note: this is not the same as “taking a knee”; in a true hunker no knees touch the ground. And it’s not the same as squatting, because one foot is flat on the ground).