What are the main dance moves and hand gestures that artists and hip hop fans use in music videos and other videos?

So people on Instagram and music videos on youtube, people use certain dance moves, hand gestures, and other things that look cool and fun, and I'm trying to figure out what they mean. I know they're a meaning behind a lot of hand gestures in music videos that lool cool but I don't know what they mean.

Keira Davies

Kate frisbee