Well, Comic Con autographs typically involve a schedule for the guests who are offering autographs. You need to check that schedule, get in line early, and have the item you want signed with you. Sometimes there might be restrictions on what can be signed or a limit on the number of items per person.
At Comic Con, autographs usually work by having celebrities or creators set up designated signing areas and times. You line up, get your item ready, and they sign it for you.
Comic Con autographs work like this: First, you have to find out which guests are giving autographs and when. Then, go to the right location at the right time and wait in line. Make sure you have something appropriate for them to sign and follow any rules they or the event organizers have set.