Almost everyone gestures while talking, at least in some situations, some people more than others. Tom Scott explains the many different ways we use gestures, and the many reasons we do it.
i move my hands when i talk to seem more wise and it works
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I once worked in a programming office with an old-timer who was French Canadian. He would gesture with the hand holding his coffee-cup. Very enthusiastically. It was a standing joke to always leave a high-tide area around ol' Marc. Then he'd calm down and mumble about he never gets to drink much coffee, and go for another cup.
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