Sign up for the Dominoes Lobbies
Enter the name you want to use at the Lobbies, and your e-mail address. Your name must be different from anyone else's here. You'll receive a password via e-mail, which you can then change whenever you want, that will let you sign in to the Lobby and chat. Your e-mail address will not be used for any purpose other than this, and it won't be given to any other party. No one at the Lobbies can see your e-mail address.