Girls - would you find this creepy/stalkerish, or cute/caring?

I have a crazy memory (maybe not "crazy", but really good). I remember stuff from forever ago. So anyways, I have a crush on a girl, and I was talking to her (this was about a month+ ago), and she said she was going to take the CPT test soon, to start duel enrollment, at the community college, in her area (I'm duel enrolled at the community college in my area too!!), and I was like "oh, the CPT is easy, you'll pass it!". If I were to ask her how she did on the CPT (or ask/talk about other stuff we talked about a while ago), would she (or you) find it a little creepy(stalkerish), that I remembered that? Or would you find it sweet (caring/cute/nice/ect), that I remembered that she was going to take the test? Just wondering! Also, other tips on how to NOT "scare her away", and maybe even attract her more, would be awesome!! =)