I'm shy around superhot girls. It's like being in the room with a small sun. I don't look at them, but I know where they are. It's hard to be myself when talking with them. I get nervous and try too hard.
Unfortunately, the signs that a shy person gives out when he is interested in someone are similar to the signs he displays when he isn't interested in someone.
1) They avoid eye contact.
2) They avoid the person.
3) They say that they aren't interested in the person.
On the other hand, there are some differences.
If someone likes you, he will avoid eye contact, but he will look at you when you aren't looking at him. If you glance at him, he will look away and try to be cool and then look back again after a little while.
They will avoid being in direct contact with you, but they will always be nearby.
If he tells your friends he doesn't like you, and your friends ask why not, he will probably talk about how he isn't sure if you like him, how it's difficult to talk with you, how he's not good enough, or something along those lines.
But what you really wanna know is how you can break through this shy shield and get closer. If he does the whole, "I'm not looking at you, now I am, now I'm not." thing, just go say hi. Don't scare him away by confronting him about if he likes you or if he was looking at you, just be nice and talk about easy stuff.
So, go say hi. If he likes you, he has to have some courage and talk with you. If he doesn't like you, hopefully he's nice and will just talk and maybe you can be friends. (That one is much more difficult!) If he's not nice and is mean to you, then he can burn in hell.
I once asked my friends what they do if they see someone they like at a party. They all agreed that they avoid eye contact. Try it sometime. If you are walking along the street, you can look through all the old people, married people, normal people, but if you see a hottie, you glance away, then back, then away...