So I need some help with knowing whether or not I should go up and just dance with a girl or whether I should talk with her first. I have had times when girls come close by or give me a look, and I go up, dance, and make out. Whereas sometimes, it seem that the exact same signal is there, but they then don't want to dance. So my question (or rather two questions) is: When should I go and talk with a girl/group of girls over dancing with them? And when if the latter, how would one go about it on a noisy dancefloor? I have seen guys just go up, start chatting girls up on the dance floor, and I have no idea how to do it.
Thanks a bunch