Ideally the GM should be able to provide pre-generated characters. You should be able to just show up. Provided you've scheduled slots at the convention. Showing up a little early can help, if you want so e assistance learning the ropes of the game or your character.There's a local convention this weekend and 95% of the games are Pathfinder Society games.
Do I need to show up with a character in order to play, or do these games come with characters pre-made for this purpose? Because I don't own any PF stuff.