Playing in a small group, I already know and use the gesture of pointing to my head to indicate "play the head" or "go back to the beginning".
If the ensemble is playing songs containing intro, verse, chorus and bridge sections, is there any widely understood set of gestures that mean "at the end of the current phrase, go to the chorus" or "at the end of the current phrase, go to the bridge" or "do verse 1 again".
I have seen some videos (Snarky Puppy) where the end of an extended solo is indicated by a raised fist, but there seems to be prior agreement about where the music will go to immediately afterwards.