Your cat's tail is literally talking to you are you listening? That little flick? Warning. That slow swish? Full hunter mode. That tiny shake when you walk in the door? Pure Why Does My Cat's Tail Vibrate When I Pet Him? Desk Cat Nest Why Do Cats Shake Or Vibrate Their Tails? What Does it Mean? 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 Why your cat wags their tail: Four reasons explained Animal Friends