Boy advice, best answer- 10 points.?

Okay, so I like a guy in the year above me at my school. We have so much in common and he is a genuinley nice guy (so i've heard). So when we're at school, although we dont personally know eachother and havent really talked much, he always stares at me and has smiled at me a few times before. I see him alot around school, and everytime i do hes staring at me i dont know why he does it but when i look at him he doesnt like turn away, weird. recently he's been walking out the same way of school as i do, and when he sees me he turns around and looks at me then turns back around i dont know what any of this means or even if it means anything at all. This is probley irrelivant but i was walking by the football courts at lunch and he was walking up from the courts, and he looked at me then walked straight by me and when he was like a bit away from me i heard some guy shout my name, so i turn around and hes looking at me then turns back around. wtf? im really confused because i have no confidence in talking to him, but every day i feel like i like him even more and i really need to do something about it:/ I dont know what to do, none of my friends seem to care enough to help me, and im out of ideas because i dont want to embarras myself or anything, what should i do? does anyone know what all the staring is about? thanks, best answer 10ps