Make a fist, then open it back and close in the opposite direction.
I have on occasion tried to think of a RC that can be performed in public without attracting attention. In public I would feel self conscious if I were to try and pinch my nose or stick my finger threw the other hand. So I was thinking it wouldn’t be too obvious to close your hand in a fist and then open it back as to close it in the opposite direction. In a dream it may work. Wile awake it might appear that you are stretching and increasing circulation. So someone may think you have arthritis or something. They might think you’re a Waco if you keep trying to stick your finger threw the other hand. Lol
Let me know if it works for anyone.