Why Do Cats Wag Their Tails: Reasons & Expert Tips [+ FAQs] Why does my cat shake its tail like this? : r cats What does this tail shake say? : r cats Why does my cat shake its tail like this? A Guide to What Your Cat is Communicating: A cat's tail is far more than just a balance toolit is a sophisticated emotional barometer that broadcasts their internal world. When your feline Why does my cat shake her tail like this? : r cats