Most importantly, wear something comfortable, that you can sit in and that makes you feel awesome (ok, maybe not your grey sweatpants with holes in them). Avoid both wearing patterns - stick to one between the two of you. Ladies, if you're wearing heels, bring a pair of flats to walk around in. Gents, wear bottoms with pockets and leave the flashy Nikes at home. Props? Do it. Bring along the guitar, the wine or even the canoe!