I agree with Iron. Obviously your intentions are to enjoy your time as much as possible before you head out. If anything, make the first move. Something as simple as putting your hang on her back, taking her hand or brushing your hand along her arm when you lean in to talk with her can give you a good idea of what she's feeling. Just be subtle but make it "not friend like". With that I mean for instance, if you met your buddy you might shake his hand or pat his shoulder for a moment. Well, with her, make it longer. Keep your hand on her waist or arm long enough to have it not be a coincidence. She'll let you know if it's unwelcome or not and if it isn't, then no big deal. She shoulnd't freak out and then you know.
If she's cool with it, then have a good time and continue to keep up with the non-sexual touching. If she doesn't resist or brushes you off or if she returns the touching (hand holding) then expect a goodnight kiss (or even kissing before hand) to be good to go.
If she gives you the impression that she WANTS to have something more happen physically, then go for it. But if you don't want to hurt her feelings or give her the impression you're using her for a fling, tell her about you leaving if she doesn't already know. If she STILL is cool with you pursuing her and gives any feelings back, everything is fair game and you saved face with her too by being honest. :-)
Good luck and make a move SOON or else you'll be stuck in the "friends only" zone till you leave her.
3 out of 2 people have problems with fractions.