From http://cuteoverload.com/2009/10/24/wheres-my-sake/ ...

"To avoid being bitten and pounced on during kitty training, we have been using chopsticks and toothpicks to feed the kittens their treat. As seen in this video, this technique has worked particularly well with training "Gluteus," where the kittens will sit up straight, balancing on their buttocks muscles (the largest of which is the gluteus maximus)..."