Plan your schedule as a 1st,2nd,3rd. There may be ones that are too crowded for you or you and the demonstrator don't click or they diverge from what the topic appeared to be.
Leave a lot of time for the instant gallery and the vendor ares. If there is a big name turner you want to see, see if that demo is available Sunday after lunch, those are the least crowded demos (saw Hans Wiesflog demo to 6 people once).
If they aren't, see about leaving your other demo a bit early to grab a front row seat on the next demo. Bring a notebook, a digital camera, a credit card and an open mind, a way open mind. You will see things you thought not possible, tell you find out how it's done! Everyone for the most part, is pretty open and approachable. Some just hand out in the IG. Look at thier name tag and introduce yourself and tell them how you admire thier work.
Every year I sit with someone and ask advice on a direction or technique and get great advice.
Be flexible, scout out areas for coffee and lunch ahead of time, and have the time of your life. It only happens once in your life, but every year!
Then figure out how your going to New Mexico next year. I plan a vacation every year around this, going to DC after this one.