She's obviously interested in you or else she wouldn't have brought
up the idea of hanging out soon. In my experience what woman
will do is want to hang out in a group just to see if you're not
some sort of creep who is trying to have sex with her in the first
30mins. You passed the test and now she wants something more
1 on 1. When this would happen to me I would assume she wanted
to hangout with me and my friends again...and then she would come
over and be disappointed that I invited my friends. One girl even told
me "Why the hell do you keep inviting your friends whenever we hangout?"
-Hugo
http://www.thinkandattractwoman.com