start with small talk sure he may be cute but you two could be ENTIRELY different! small talk is like "Hi,how's your day?" "what music do you like?" "do you like cats or dogs?" "do you like reading?" don't ask too many at once or the guy will feel like you are interviewing him.Act kinda shy,most guys think its hot.
Just be yourself that is the best way to flirt. You either attract someone by how you are or you don't... Just as you may find as you get to know them that maybe you don't like them after all. Get to know each other
First off, you can not force a guy to like you. But, if you slowly start showing interest in him, then he may grow on you too. You could always have a friend tell them that you think they are cute, but it can kind of be awkward if you haven't broke the ice yet. Talk to each other about random stuff, like your pets or what you have been doing over the summer. Hopefully he likes you after sometime, and if not just move on.