If you've already set up your first profile but your subscription includes more, you can add new profiles from the "Who's ready to play?" screen. Tap the gear icon in the top right of the screen, and enter your password. This will take you to the Settings screen, where you will find the "Manage Children" section. From here, tap on "Add a child" and follow the prompts. If you have a monthly subscription, you will only have one child profile. If you have an annual subscription, you can create up to three child profiles.