1. If you connect your Facebook account to the game, your Facebook friends who already play Extreme Golf will be automatically be added as friends in the game.
2. You can also manually invite individual friends by going to the Friends tab and pressing Invite Friend. When the friend accepts your invitation by tapping the (URL) link you sent them, they will be added as your friend in the game.
3. Even if the friend you sent an invite link to is already playing the game, they can tap the link to load the game and they will be added as your friend in the game.