I find myself absorbing gestures from folks I'm close to emotionally, when I spend lots of time around them, but like adapting to a regional accent through intense exposure, most of it tends to trickle away with time.

In my 20s, there was the hooked together index fingers when one was in a thoughtful discussion, seldom do it now. After my beat friend retired and I did lots of driving with him, I found myself using his same two handed, fingers splayed out and palms facing inward shaking motion when irked by drivers who wouldn't move. ( backhanded "jazz hands" perhaps?)

One I've done all my life is to raise both hands, palm out, elbows tucked at the side, shoulders shrugging as a "leave me out of this" gesture meaning or I'm fed up, done, with a situation. Had a weird situation when an obstructive UPS clerk's reaction with my attitude of frustration had him holler "don't you raise your hand to me!" I don't know if this was an actual cultural misread, or a willful ploy to try to make me out to be violent.

Joanne in Cleveland, whose personal gesture is a nose wiggle: just because I can