Should I tell him...?

Do you have his number? If you don't i'd go up and ask him for it and tell him that you want to hang with him over summer! Flirt with him a little and say you can go to lunch or a movie or something just the two of you to hint that you would like him. I think just telling him "hey, i like you" is kinda forward and will scare him away. Lol. Good luck (: Going for what you want is always good.