Talk:Friends/@comment-168.187.101.42-20120529185514/@comment-5147667-20120529190701

You need to access gamcenter through the gamecenter app. Select "Requests" in lower right OR "Friends" towards the left. Select "Add Friends" at the bottom. Here you type in the persons gamecenter name and personalize the message if you want. Finish by selecting Send in the top right.