I want to design Hand Gesture. By hand gesture, I mean the form or movement made from wrist to the end of your finger, e.g. 'thumb up', 'peace sign', 'waving hand', etc. I design it to be tested on a UI like webpage, e.g. 'peace sign' for action 'going to the next page', 'waving' for 'back to the prev page', etc.
The thing is, this is academic project, so eventhough I do have some gestures in mind, I don't think I can just say "Yeah I chose this because I felt that's good" as the reason why I design that gesture. So, is there any known principle, guidance, consensus, or standard in designing hand gesture?
This is my first time asking here, if there's any mistake or I asked in wrong place, please do tell me.