Friends don’t invite friends to play games on Facebook.
Okay, okay, that’s a bit harsh…but seriously, stop it.
I know that those games are set up in such a way that you can’t play and/or advance without bugging your friends, but maybe it’d be more productive to focus on inviting folks who already play those games?
No, I probably won’t “unfriend” you for sending me game invites, but I’ll probably consider it…
And you don’t want to take that chance, right?