Girls please help me out!?

Ok so me and this Girl have been talking for a few weeks, and could possibly go out soon( both high school). Ok so yesterday she invited me to her house hot tub party were it was just me and two of her girlfriends an we chilled and talked and stuff. But then she said that we should hang soon and possibly see a movie or something. So now idk if she likes me as a friend or like likes me an hat are ideas on what we could do( and we've been Frieda for about 4 months but never really talked much till recently