Attire

[blu_surfwear]

Excuse me if this is a sily question but I'm attending my first one of these and what do most people wear?  Do they go "office casual" or as I'm a guy, and since it is Vegas in the Summer I'm wondering if I can get away with wearing a nice pair of dress shorts and a polo shirt?  I want to be comfortable but I don't want to look like a slob either. 

[disneyshopper]

I've been to 4 of these in the [ast 20 years.  Wear what is comfortable.

I plan on wearing shorts and a t-shirt + sandals.