I clicker trained my dogs, but never thought about doing the same for my cats. This set of videos shows cats sitting and shaking hands on command, and they were all clicker trained. There's even a video with cats helping someone find her keys.
I really want to try this with my cats! Maybe the boy and I can have a competition to see who can get a cat to sit and high five first. I pick Fifty as my cat partner.
A new International Cat Hat is coming very, very soon. Stay tuned!