Hmm...I usually save the making out for once were going out...But whatever, ur mouth not mine
That way I know that I'm not being played like a fiddle but call this guy up and see if he wants to go out and do stuff. See if he's doing "gentlemen like" things such as holding doors open/trying to pay for stuff. Get a crowd of people together with more girls and see if he tries to act the same way with these other girls and what not. I donno...This is what you do if you want to go like secret agent style and read all his moves and what not, but seriously if you guys have made out and what not you could just ask him
Just be like "Hey, I was just thinking if you and me were actually going somewhere or if your really into me"