Does he like me and what should I say to him?

So there is this guy that I really find attractive. We were at ballroom dancing and I am not a good dancer so I sat and watched him dance with other girls and just smiled the entire time. He kept looking at me while he was dancing with them. Then I walked past him and smiled and he smiled back. As I was walking by his way he said, "You know I've been waiting on a dance". I just told him I wasn't a good dancer and he said that's ok. So he grabbed me really close (our bodies were touching and we were smiling and laughing about my moves). When we were done dancing he didn't glance at me as much as before. When I left, he watched me leave. I am 18 and I don't know how old he is. I am shy but I really find him attractive but I need help because I don't know if he likes me and if he does I don't know what to say to him to not make anything be awkward. Help plzzzz!!!