Just go to him and introduce yourself and said i hope we can be friends.
if your too shy like me, then chat with him in facebook or anything first.
then when u meet him in real life, it would b easy and better to be close with him.
just be yourself and dont act around like diff person.
If u afraid he know u like him, then just act like normal, i usually get shy and blush when i talk to guy i like and my face would turn red. XD
Good Luck