Girl wants me to come over for a "movie night"?

A girl who I knew from college recently moved into my neighborhood. Her and I messed around once in college years ago, and now I'm slated to go over to her place to watch a movie. I'm not sure how to act in this situation. Usually when hanging at someone's place, I already know the person more and have an idea where things are going. I'm confused as to how I should approach the situation. I'm pretty shy around girls and don't want to make the wrong move/lack of move in this situation. How should I go about this?

P.S. The girl recently told me she thinks I'm attractive.