How do you call someone your Sensei?

Sensei is always in the Diego! This may not be correct but I think that's on the corner of the Club Penguin map! If you click on Sensei you can play a game of card jitsu and earn belts to become a ninjer or are you up for the challenge and try and beat sensei at his own game?

And remember folks, NEVER WAKE A SLEEPING SENSEI!