Hyatt, second floor, near the stairs. So, when you come in the door, take a right to where you see an (empty) phone bank. Go towards that and you'll see a door to the stairs. When you come off the stairs you'll likely see a line of people (or at least a bunch milling about). Entrance is the second door (the first is tucked back a bit, but ppl still try to go in that way), Exit is the third, and Security/Staff is the Fourth.