I almost always go very early the first day for the best selection. When I go intending to buy, usually I compile a list of things that I would want (so that my options are open I choose a few that would work nicely and pick one that I fiind at the show that is nicest) and first look for those. If I don't find anything from the list that catches my eye, then I start to just look in general and may pick up something on impulse