I know how to add new people to my "All Friends" tab. But my "All Friends" tab contains personal friends and family that do not play online games. I do NOT want to annoy them with constant requests or emails from a game. I would like to take advantage of my "Farm Friends" tab so I can leave personal friends out of the equation. How do I add friends to my "Farm Friends" tab.
Also I don't understand the window that appears saying "Don't ask again until you send to (the above list of people)." With an option to Cancel or Send. What does that mean?