caught a girl looking at me?

I was in class yesterday and I saw a cute girl turn her head towards me from the corner of my eye. She didn't say anything until I looked back which is when she asked me what chapter we were reading. She may have just been wanting to ask a question but she didn't say anything until I looked back. And also one time she tilted her her when j said hey when she came into class. What does this mean? Im curious cuz she's a cutey