Yup, make sure you are there in plenty of time. Tech and registration open a 7 am and close promptly at 8. There will be an announcement. The mandatory riders meeting is a 8:15. After some general information, the Novice group, which you'll be in, will separate off to the classroom (or some separate area) to go over more details and explain very important information on track riding, pit in/it out procedures, etc. - critical stuff. Then you'll be assigned with the other first timers to a CR (control rider) who will work with you to show you the lines around the track - lead/follow - and meet with you after the session to go over any questions, and give you pointers.
There will be a meeting over lunch for the Novices and anyone else interested to discuss body position and answer any questions. Then more track time in the afternoon.
Like Tom said, bring a canopy for shade and a chair. If you don't have a canopy and don't want to purchase one at this point, bring a chair and introduce yourself to whomever you're pitted next to. Most folks, when they find out it's your first day, will welcome you under their canopy. Bring plenty of water, snacks, lunch. And an extra 5 gallon can of gas, although most tracks do have gas pumps (but it's pricey!). Are you planning on trailering your bike to the event? Some folks ride, but it makes for a really long day. You'll be surprised how tired you'll be after one 20 min session.