In the most basic sense, hooking up with someone means that youre sexually intimate with him or her, yet this intimacy can range from kissing all the way to intercourse.

What to say to a girl if you just want to hook up?

Try something along the lines of: “Ive been having a lot of fun and Im just wondering what youre looking for out of this.” Let her know that you dont need an answer immediately, but that youd like to talk about it before this goes too far.