I'd go with something that looks good all around. maybe a dress with flats. and wear your hair down. always do on a first impression. that way he can see waht you look like more naturally. leaving you hair down is always sexier anyways. :) uh wear a dress that covers cleavege, you want him to look in your eyes. a good color is black for dress. I would straighten my hair to look sleek and chic, but if you like it better curled, whut ev! you is u! :))))
Probably just something you feel comfortable in, and when you see him give him a big great smile. That's about all it takes to be honest with you. We aren't that picky as long as the girl knows how to shower herself. lol
Wear whatever you feel most comfortable in. If your into dresses then wear a dress, if not wear a cute top with a pair of jeans. Curl or straighten your hair up or down however you like after all it is your body.