So, last semester, this Chinese girl came out of the Photographics room with a camera, and I was sitting in the hall drawing in my binder, since I had a spare in that period. As she passed by, I gave her a quick look, and my first thought was that she was sort of cute - a bit shorter than me, long hair and thick bangs dyed brown, and glasses with red frames. I went back to my book, and a moment later, she came back and asked if she could take a picture of me for her project. So, I pretended to be naturally writing, and she took her picture, then introduced herself. Her name was Ai Den, she shook my hand, and as she pulled her hand back, I swear that she deliberately trailed her fingers against mine.

Since then, I started to use the Photographics room for the computers in third period (mostly since I knew that teacher really well, not because Ai Den took that class), but I got to know Ai Den a bit better. She was actually pretty pleased to know I was in the same grade as her (that's a tenth grade Photo class, so she thought I was in it...), and she acts like I do when I try to talk to her - nervous and pretty happy to be there - and any time I pass her in the hallway, she always waves and says hi, and I do the same. And one time I met her at the library, near the bus mall. We talked for a bit and I can't remember what it was about, but all I remember is how excited she was to see me, and how hard she was trying to understand my English.
But I don't know what I'm doing. Does Ai Den like me, or is she just really happy to know me? I think she's absolutely adorable, but I also wouldn't mind having another friend. I need to find out how she feels, because otherwise it's going to haunt me long after graduation. But how do I do this?!
Some of my female friends have complained about not knowing what to do when they like a boy. I usually tell them that they're lucky, since they can write the person they like a letter and not worry about being tormented later.
I could just find out what Ai Den feels, if anything, and I could be happy leaving it at that. I've only ever had one girlfriend in the past, and that one didn't even think of me as a date, and it all went into the ground after she got into clubbing.
...So AB-Online, what do I do?