Things You'll Need
Instructions
Turn on your PS3 and log in to the PSN. Select the ̶0;Friends̶1; menu from the XrossMediaBar (XMB) and select the ̶0;Add a friend̶1; option. Enter the PSN ID of your friend in the ̶0;To̶1; field and select the ̶0;Send̶1; option.
Launch "LittleBigPlanet" on the PS3. Click the ̶0;My Moon̶1; link in the main menu to invite current PSN friends to your "LittleBigPlanet" friends list.
Turn on your PSP and slide the "Wi-Fi" button to the "On" position to enable Wi-Fi. Select "Network" from the XMB and select the "Sign in" button to connect to the PlayStation Network. Launch "LittleBigPlanet" on your PSP after connecting to the PSN. The friends list on your PSP updates when you connect to the PSN through your PSP.