Share 'Advice for first time NECC attendee'

Yes, I'm going to San Antonio in less than a month to attend my very first NECC conference. The plane has been booked, the hotel has been reserved, the conference registration has been paid for. I've started my conference planner and I'm starting to add events to it. What else? Is there something I should keep in mind that first-time goers usually don't think about? Are there any must-attend eve…