Two things!
1. Water Parties are a quick "party" and it is very CASUAL! It's merely an open house to see the houses and meet a few women in a quick time. So in my opinion, I wouldn't try to be too different than what everyone else is wearing. I know recruitment is all about being yourself but I wouldn't try to swerve too much from the norm for this round! I think you will see lots of Nike Shorts and t-shirts with comfy shoes! The sorority women will be wearing something similar as well!
2. Article about ADPi's colonization process in the DM today:
http://thedmonline.com/alpha-delta-p...s-to-ole-miss/