How do you know if a girl in your PE class will go out with you?

1st rule! never expect the girl to like you back. try to be an interested friend to start out. say hello! hello is always the start of a conversation. if she says hello back, then she notices you. then tell her that you have noticed her and you would like to hang out with her. invite her to hang out at the mall or go see a movie. if yes, exchange numbers, make plans, and hang out. remember, start a friend relationship. the next step is up to you two.