like if a boy gets on you on the floor does that mean he likes you

Answer 1

Not necessary but yes there are possibiltes, was he looking into your eyes while talking to you? was he holding you close enough? were the talks romantic enough?how was his body language? did he offer you a date after the dance? are few things you can judge if the person likes you or not.

Answer 2

People like to have fun and test their limits. It is suggested you understand when someone shows interest in you that is all it is. To expect every interaction to mean romance is simply wishful thinking. Enjoy life and do nothing nor say anything you will regret tomorrow.