Folk who wave their hand around when they talk, I've always felt that it really distracts me from concentrating properly on the conversation.
Now that I'm a misanthropic, curmudgeonly menopausal shrew though, I actually think that on some (perhaps primeval) level I'm feeling slightly on edge that there's mild danger in front of me.
I fell that same no matter the sex notgender of the speaker, just sit on your hands or hold yer Costa Coffee bucket, Shirley, please.
So AIBU to feel at best, distracted, at worst slightly mildly threatened by the wavers and gesticulaters?