Most Japanese children learn the Japanese Sign Language for "Cat" since they can begin to walk. It's a very simple sign to remember. Just mimic a cat cleaning itself with it's paw.
Also if you go into most Japanese shops, you will see a small statue of a cat, waving it's "arm". This is meant to intrigue the customer and bring them into the shop, thus making the "Arm-Waving Cat" bringing in good fortune to the shop owner.
Oh and by the way, for all you Cat-Lovers (or people controlled by Toxoplasma) there is a Cat-Island in Japan called Tashirojima. The fishermen on the island believe the cats are good luck and feed them freshly caught fish. There's also a Shrine dedicated to the Cats.
We visited Cat-Island. Here's our video: