Decode your cat's mood instantly! Is your cat's tail a question mark, a low swish, or an excited high wag? Each position has a secret message Why Do Cats Shake Or Vibrate Their Tails? What Does it Mean? Why does my cat shake its tail like this? : r cats The Surprising Reasons Why Cats Wag Their Tails What is she trying to tell me? Vibrating tail??? : r CATHELP What does this tail shake say? : r cats