Image borrowed from Maneki Neko Luck Cat.
The cat in the story and video below is apparently doing Russian Sign Language. It might look a bit familiar to cat people in Japan... Anyway, seems like a good way to start out the last week of classes here. Story from MSN.com:
Watch a genius kitty ask for food in sign language
Here's something great: A cat telling its owner in sign language that it would like to eat. This video is from February, but it's still picking up fans just because of its delightful protagonist.