What are your dancefloor pros?

I was out (dancing) with a buddy last night and she commented that a lot of what she sees on this sub is things people are against (phone use, zombie-ing, loud talking, etc. -- all fair commentary and it's definitely important to call those things out!).

So in the spirit of the weekend, what are things that you are for on the dancefloor?

I'll kick it off:
-- Moving your body as weirdly as you want
-- Locking eyes with a stranger and having a mini dance from afar
-- A really good disco ball

What else?