Plan some stuff to do. Instead of just winging these things have a clear goal and an agenda to meet that goal.
Clean your place. The cleaner the better. Women don't like filth, well most of them.
Here are some ideas.
Have some DVD's or bluerays on hand to let HER pick out a movie.
Got an x-box??? challenge her to a game.
Order some good food to eat with her. (or even better cook it yourself and have her help)
Have any collectables laying around your place??? Come up with a pre-thought DHV of them and tell the story.
When I have a girl over the first thing I do is give her a tour of my little condo and tell her to make herself at home. Show her the place, where all the bathrooms are etc...
Good Luck!
P.S. you have a VERY good chance of getting with this lady! Take the time to pull it off right!