Cats wear their emotions on their sleeve tail.
Unlike dogs, no self respecting cat would be caught dead wagging – they twitch where just the tip of the tail moves. And it rarely means they├óΓé¼Γäóre feeling happy when they do it….
Fast-twitching tip: Cats who are agitated or irritated seem to channel all of their energy into the top 2 inches of their tails, which will briskly twitch back and forth.
Tail lashing: A cat who’s slightly irritated will twitch her tail. A cat who’s very irritated is more likely to lash it back and forth. That’s when it’s time to really back off.
Slow-twitching tip: People who are comfortable and relaxed sometimes gently tap their feet. Happy cats do a similar thing by slowly twitching and rolling the tips of their tails. If you’re not sure look at the rest of the cat: A cat who is content will also relax her whiskers, and her body will be downright limp.
Tail high and quivering: When a cat is facing you and the tail is erect and quivering all along its length, you’re being told,
“You’re the best thing in the whole world.”