Make sure you get a good night's sleep tonight, and every night of recruitment.
Make sure your outfits still fit right and your shoes are comfortable.
Don't wear a watch or carry a cell phone into parties. Leave them in your room, or if you think you must have them with you, give them to your rho chi (or whatever they're called) before entering each party. If you feel naked without your watch, wear a nice bracelet on the wrist you normally wear your watch on.
Smile.
Relax and have fun! Good luck.