I don't know, a girl comin' round...who sounds like she might be a little frisky...and we're talking cards, movies and cooking? Man you need to pound on that for a little while, if it works out right you'll never have to push play on the dvd and the day will fly by.
Okay maybe things aren't moving that quickly and you want to impress, but why stay at home in your room? No offense but that kind of sounds a little depressing. If you know her well enough that the two you just like hanging out and feel like dispensing with the usual date/get to know you garbage, how about taking a walk or a nice drive somewhere quiet with a stunning view (or into town and find something fun to do)? Its easy, gives you lots of alone time together, bring some good music along and quiet honestly a good sunset over a lake with a place to cuddle is a grade-A bra remover my friend (of course I find lots of alcohol tends to help here...but what the hell it should work without it). If that doesn't work bring her back home and prepare or take out a nice meal, slump down on the sofa, start the movie and let nature take its course.
I mean it sounds like you want to get something going with her while she's over, I don't think hanging around in your room and playing games is going to get the job done. But you know her better then we do, if she's into that sort of thing give it a shot...but yeah...I don't know...