A cat's tail is a powerful form of communication that reveals its emotions and intentions. When the tail is erect and twitching, the cat is usually excited or happy, while a straight up What Does It Mean When A Cat's Tail Vibrates? 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 16 Cat Tail Signals You Should Know : Azis #cattail #athasyacattery #kucingathasya #catsignal #catlife #catlover Why Do Cats Shake or Vibrate Their Tails? Vet Verified Reasons Explained Catster