Decide who can see your child's gamer profile. Your child's gamer profile includes their motto and information about their online achievements and game history.
To set your child's profile sharing options for Xbox LIVE:
Go to My Xbox and open System Settings.
Select Family Settings, Xbox LIVE Controls.
Sign in using the e-mail address and password that you used when you set up your child's Xbox LIVE account.
Select Privacy and Friends, Profile Sharing.
Select Everyone, Friends Only, or Blocked.
To configure your child's settings for new online friends (including settings for approving friend requests), see New Online Friends for Xbox 360.
