Modifying this control will update this page automatically
on your Mac.Click your name in the bottom-left corner, then click Game Center Profile near the top of the window.
Click Friends, then click Invite Friends.
Choose from the suggestions or type the name of a contact in the search field, then click Invite to send an invitation.
Press Return to send your friend request.
Find games popular with friends
Go to the App Store app
View and edit your Game Center profile on Mac