Facebook is the only way you can send and receive lives in Juice Jam.

By connecting your Juice Jam account to Facebook, you gain the option to send and receive lives from your Facebook friends.

When you have four or fewer lives in the top left hand corner of your screen, a plus icon will appear next to your life counter, allowing you to either buy lives or ask your friends for lives. Lives can only be sent to the same person once every 24 hours, so if you can't see some of your friends when you ask them for a life, you've already sent them a life!