How can I show this guy that I'm interested?

it’s ALL about eye contact. I am 100% serious. it works like a charm. when you see him act like you’re having an especially good time with your friends, laugh a lot or tell a funny story, anything to get him to notice you (without being too crazy). good luck xoxo

First, stalk him a little to get to know what he likes in a girl - you can get info on that from his friends and people who indirectly know him.

 Once you do, you'll be in a position to mold yourself into the girl she likes and put yourself in places he often goes to - put yourself in his way. He's bound to notice you very much. 

By molding yourself, it doesn’t mean you have to be a completely different person - just take the major parts of his ideal girl, mostly in attitude, and you’re all set.

I know that you have to be yourself but that isn’t the point - it’s being yourself and more… You’ve heard about everyone needing room for improvement, right?

okay look at him smile then look down and like brush your hair to the side once you tilt you head back up xD it would probably be good if your with some friends :D

SMILE!!! Make eye contact and smile at him. If you feel a blush rising make sure he sees it or if not you can tilt your head slightly to the floor . you can also try waving at him. Eventually he’ll approach you

hope that helps ;)