Things You'll Need
Instructions
Scroll to the "PlayStation Network" icon on the PS3 main menu and select "Sign In." Enter the email address and password associated with your PSN account to sign in. If you do not have a PSN account, select "Sign up for PlayStation Network" and follow the instructions on-screen.
Scroll to the "Friends" icon on the PS3 main menu. All of your current friends will be listed as offline or online. To add a friend, select "Add a Friend" and use the keyboard to enter their PSN account name. In order to communicate with them, you must wait for them to accept the friend request.
Select the account name of the friend you want to communicate with. Select text, video or voice chat. For voice and video chats, wait for your friend to join the chat. Text messages will be sent to your friend whether they're online or not. If they're offline, they will see the message when they first log in.