Well, I don't have much experience with girls. I've always been a quiet guy, keeping to myself, and was always pretty small for my age. Turned out I had IBD, and ultimately had to have surgery for it. When I came back, I was a new guy. I was far more muscular and talkative, although even to this day I'm working on my conversation skills. I got really into soccer, and focused on that, managing to make it to Varsity at my High School.
When school started, I went into one of my classes, and saw that I didn't know anyone in there. Instinctively, I sat by the only person there who didn't look hostile to everyone they don't know. A week or so went by, with me and this girl not really saying anything to each other. Then, I found out she played soccer. She was surprised to find out I played it, too. Then, we started talking in class. She turned out to be a really nice girl, and we actually had many things in common. At first, when we started using the computers, she sat on one side of the room, while I sat on another, with a couple of new friends I'd made during the year. After a couple days, I asked her to sit next to me when we used the computers (My new friends all knew I was talking to her and were more than willing to let her take their spots), and she asked me if I wanted her to. I said yes, and she started sitting over there with me. Now, we were talking almost all class long. I knew I liked her, but I didn't know what to do about it.
When it started out, we would walk in opposite directions after class, as she had class and I had lunch. One day I walked with her to her class, not having any money for lunch that day. The next day, she walked with me towards the front of the school, and has done that ever since. A couple friends were saying she likes me, but it's hard to tell if they're teasing or not.
She recently added me on Facebook, and I looked at her page. It's full of her friends (Both male and female) telling her how pretty and nice and how awesome she is, and she often goes out and does things with them. I'm willing to do these things, but I'm not very good with meeting new people.
I just need some help on where/how to move forward with this girl, if at all possible. I'd thought she'd been giving me signs that she might like me before, but it just turns out she's a really nice person.