my biggeszt problem is that Boalt's website states to wear something "business casual" during the reception (which is apparently completely different from admitted student day), but says absolutely NOTHING about Admitted Student Day. the website says that students will be touring Berkeley's campus during Admitted Student's Day. I actually go to UC Berkeley right now and I know for a fact walking around campus in business casual attire is quite hellish. Berkeley's campus is built on a hill. Besides, I'll probably skip the campus tour since I've already been here for 4 years...I'm sure I dont need to tour it again.
But thanks for all the suggestions! Maybe I'll go there wearing something nice, but if i look too formal, I'll run back home and change.