You need to see how he treats you when he is with you, if he is all full of smiles and jokes and admoration for you in private then he likes you, sometimes boys can be funny towards girls when they are young because there scared incase there friends will laugh or slag them off, so they can sometimes be mean to you when with there friends but in private the complete opposite, its all because they are young and have some sort of reputation they think they need to live up to, its all baloney at the end of the day and when guys do get a bit older they stop behaving like little boys, well, most do