Whether it be on Sunday morning or any time during the event, to check you you simply drop your character card in the Card Box placed in tavern. If you have a teacher to begin learning a new skill, you can fill out a Learn Card with the proper information and the signature of your teacher, and drop this in the box as well. If you have anything you need to turn in, such as chits or tithes, you can place these things in a baggie provided with your character card, and place the bag in the box.