Like a Guy, I'm Not Sure about This...?

I think you should play it cautious. There are no sure signs he dosen't like you, but there aren't any that hes only looking at you. With the girl he was grinding with, maybe he was just having fun, be he also made plans to see you another time, so he defiantly wants to see you again. I think you should take it easy, try talking to him some more, and get to know him better. Try flirting, but dont be too obvious, guys like the chase. Hope this helped