The presence of artists in the second ceremony of thanking the producers
Ideally, attend the stage door on a different day to the actual show that you attend, so you can be first in line. Otherwise, leave the theatre right after bows. If you spend time talking to others or looking around the theatre after the show, you may lose your chance to meet the actors or get your playbill signed. The crowd at the stage door fills up fast and you want to try and get as close to the barricade as possible.