So I like this really cute guy...?

He was in my gym cl last semester, hes super cute, I've noticed him within the first week of school, well second semester has started so I dont know if hes in any of my cles.. In gym he'd always be in his little group of friends so I never bothered going to talk to him... But, he usually didn't participate in gym, so when I played in gym I'd alwsays look up in the bleachers and he would be looking at me. And in health cl (which is part of gym) I looked over at him and he was looking at me again. I dont know if he likes me but hes super cute. But my friend said to leave him alone hes a "" cause supposivley he told the school last year that some chick was biual which was true and if she was pissed and embarred thats her problem for telling people about it.. But any ways, i see him in the halls and waiting for his ride after school and I really want to talk to him but i dont know what to sayyy to him...can you give me some advice on how to talk to him AND OHHH BYTHE WAY, he added me on facebook LOL