Sorry for the brevity earlier, but the above is correct. I went the morning of the first day of the conference. I wanted to go on the career day, but the evil scheduling overlords did not cooperate, even with the animal sacrifices. I was there 20 min before opening, and by 9 am I had talked 2 of the reps there. I went to a few sessions, and dropped by again after lunch to speak to one more person. Went to the airport after and was home for a late dinner. When I say productive, I mean that I interviewed later and am currently waiting to start class.

EDIT: I did wear a suit and tie. 90%+ of the people there for AS did the same. Be prepared to answer some basic screening questions, such as "Why Alaska instead of XX?" and "What sets you apart from the other pilots here?"