Saving to Facebook on Andriod

Unknown

I'm playing the Andriod version and I'm not sure how to save. The support FAQ says go to the setting screen and follow the instructions there to save the game, but I don't see any way to save. It just give me the option to log out of Facbook (or if I am logged out to log back in).

Do I even need to do anything or is the save automatic?

Thx