Recently, this girl I know asked me to join her group for a presentation that she and her partner had already finished making. I didn't think much of it, but the next day she asked again. Additionally, during our labs, in which she usually works with the same partner she has for the presentation, she's been asking me to join. I don't know what that really means. Does it mean we are friends? Additionally, I know she has a boyfriend so I doubt she means anything like that, but again: I don't know.