I think the best way would be to try to notice if he's more shy around you then other people, although he might try to act a little bit more confident around you(speaking as a guy who is pretty shy).
Well I consider myself a shy guy, and the only way to tell would be that I giggle at every joke a girl I like makes, and I seem to give off a lot of body language, or so I've been told.
She finds you quite attractive and could be comparing you to them.
Just tell him as soon as you have he will stop being shy.
You ask him..
It could mean that he is interested in you or finds you attractive, but he is nervous or unsure about how to approach you. He may be shy and not ready to make a move yet.
touch him.
You ask him.
Often you find many people attractive even when you are in a relationship.
He will get all shy and really romantic
By saying so.
well I'm a girl but my friend who is a guy he thinks that shy girls need to be more lively they need to express them selves
there are many different things you could do it all depends on if you are shy or have confidence in yourself.
He doesn't have to nice to you for him to like you, but generally he will be. You will catch him looking at you when he thinks nobody is looking, might even blush or shy away when he finds you looking at you!!! Smile at you often!!!!