Forum:Finding friends on list if they are not there.

I bought this game recently along with my brother. He has had trouble with seeing me in his friends list and I was wondering how to fix this. Also, where do you look when you have been invited to a game? I can create a private game and send him an invite but he does not receive the message or at least is unaware of where to look for it. Any help you can give for this issue would be very appreciated. Thank you.