I need help please answer !!!?

okay so i was a freshman lastyear 08 and there was this dude tall hot azz hell we always used to bumbed in the hallways and give funny smiles and he always use to p by my bio cl and look with smirks it seem like everywhere i went he popped out lol how do i know if he liked me i went crazy for him i still think about him alot ps he was a senior now hes off in college tell me what u thing please i am dumfounded