Yesterday, I was playing Tower (yea, same old), was having a bad streak and I found myself doing this crossed fingers gesture (as if I am fed up, and want my luck to change):
https://talkimg.com/image/UEqt2T (Image from Evan-Amos | Wikimedia)The other time, when I am succesfuly able to recover losses I find myself doing this fist bump:
https://talkimg.com/image/UEqFr1 (Image from johnwnguyen | Wikipedia)Now, what gestures you do while gambling?
Edit: I am very well aware that these signs make no difference in gameplay whatsoever.
In my opinion, it's a spontaneous movement that we make, a reaction that arises when we get results, whether they are in line with our own desires or not in line with what we think. I once found myself jumping when I got a free spin with a high bet amount, because it was unusual, so I spontaneously and reflexively jumped. Everyone can experience this, even outside of gambling. However, when I gamble with a low bet amount and get a free spin, it doesn't make me react spontaneously; I just watch it. And maybe some people are like me, but I think that when they get unexpected results, there will be a reaction that may be quite enthusiastic.