Well, I'm not sure about LSU, but she should (if she hasn't already) receive a recruitment packet. The packet should have in it what to wear for each day. Each school is different. Some schools have specific t-shirts for the girls to wear for first rounds; others may have you wear something nice (like khakis and a nice top) Usually the dress attire gets more dressy and "classy" as the rounds go by.
Have her check her packet, if she has it. If not have her check her school panhel website.
Erin
Hybrid Mode
