Welcome!! Usually they have a room where people line up prior to the time of the autograph session. Some guests have items for sale to get autographed but there are some who don't. Unfortunately, that info isn't usually given out, or at least the staff didn't know. I think if you are in line before the session starts you should be able to receive an autograph. I don't think I've seen them close the line until after the session started. However, I'm not staff but I've been attending since 2007 and that's just my personal experience =^. ^=