<human>: Recently I've been making an effort to change and part of that was going back to school.  In one of my classes I became very interested in a girl and went through the infatuation phase for a couple weeks.  We talked for a few weeks before classes ended but it never progressed past basic classmates.

We're now in the second semester and share no classes (But we will in semester 3) but I have seen her walk around and know which classes she's in.  I'm not sure how to interpret this but she seems to avoid me in the hallway, common area, etc.  Basically I sit around waiting for class to begin and if/when she walks by, she looks away and does a sideways glance.  It's almost impossible to say hi or something since she walks by so fast.

The only other thing that happened is when I went into her classroom to talk to a teacher, she looked really happy to see me.  Basically her face lit up and it really surprised me.  We talked for a bit and I left after students started coming in.

So what can I do?  I'm torn between whether or not she likes me but it seems like things are overall positive.  I'm also not sure if it's even appropriate to make a move since the last thing I want is to create an awkward atmosphere between us in class.  Should I just wait until we're both back in class and see what happens?

Can you condense the text into three sentences or less?
<bot>: Have very little experience with girls/dating.  Want to make a move/talk to her but not wanting to create a bad atmosphere.  Should I just wait until we're both in the same class?