<human>: Can you give me a shortened version of the text?

I've never been so into a guy before in my life, especially one I barely know. 

I met him in one of my classes at our college and I was immediately attracted to him. After getting over my initial nervousness, I said hello to him one day and it has gone slowly from there since the start of this semester, however, it's mostly small talk and he doesn't ever talk about himself. 

I asked a friend of mine, who went to his high school, about him and she said he's always been that way; extremely introverted. He's never drank or partied, he doesn't "hang out", he barely talks at all. She told me he likes to skateboard all the time, but that's not exactly common ground or something I can do with him, you know?

And I'm the total opposite. I'm very much a social person and love interacting with people and have very many friends. I told him once, although indirectly, that he can come hang out with me and my friends anytime if he wants to get out of the house, but he said that's something he just doesn't do. 

So, the only place I can really see him is at class, but how can I get to know him and pursue him if he's always alone in his home? I've never been in this position and I'm ansolutely terrified of rejection. Is being direct with him my only option here?
<bot>: Really into a very introverted, but sweet-hearted and sincere guy who is always isolated. How can I subtly make a move to let him know I want to be more than friends?