On the Me Tab you can edit your Game Center status or add/change your profile picture. Under that you can also see your username. Then there are the Game Center bubbles the "Turns" bubble will take you to the Turns Tab, the "Games" bubble will take you to the Games Tab, the "Friends" bubble will take you to the Friends Tab, "Challenges will take you to the Challenges Tab, "Request" will also take you to the Friends Tab to see if you have any new friend request. Under those bubbles you have a few top Game Center games that you can download.