Cat tail language Petplan Why does my cat shake its tail like this? A Guide to What Your Cat is Communicating: , A cats tail is far more than just a balance toolit is a sophisticated emotional barometer that broadcasts their internal world., When your feline friend What does it mean when a cat's tail vibrates? Do you know what your cat's body language means? Cat's body language can help us understand the mood and status of cats very well, so as to get along with them more