<human>: Summarize the given text in a few sentences.

Girl from high school I haven't seen/talked to in 7 years msgs me on facebook for help with an assignment for a grad school program I just finished. I helped her out, we continue texting, she sends some flirty texts and now I'm interested. Even in high school, me and this girl never really talked or hung out, just knew each other, now we text every couple of days. 

So last night I was at my friends place and she knew about it, we have a few mutual friends, and she texted me asking where we were and if she could come by til midnight or so until she goes out with her other friends. She comes out, we hang out and drink in a group til 2am or so. She's hanging around me the entire night and not much with the other people she knew, and who she's definitely seen more in the last 5 years than me. 

We leave around the same time, we walk to our cars, she gives me a hug and we go our separate ways. I should have made a move then but didn't. She texted me right away after leaving pretty much just saying good night. Throughout the night we talked about random stuff like how she wanted to learn to skate (which I can), and how she wants to be a sub for my coed soccer team. She invited me out to her cabin for her birthday next month. I still view her as being out of my league, a girl I couldn't see myself landing.

I'm interested, I think she is (don't know how/why), but I want to pursue it. So now do I just hang back and wait for her to text me or wait for an obvious time to text her to invite her out somewhere? Should I avoid texting to make small talk? I've never been a big texter, so I really don't know proper etiquette for this
<bot>: Talking to girl after 8 years, comes out to party with friends, seems interested, but not sure how to approach going forward