Reading cat body language
Quick answer
Read the whole cat, not one signal. A tail held straight up, soft eyes, slow blinks, and forward ears usually mean a relaxed, friendly cat. Flattened or rotated ears, a low or lashing tail, dilated pupils, a crouched body, and hissing mean the cat is frightened or annoyed and needs space.
Cats are not aloof. They communicate constantly, just more quietly than dogs, and mostly with posture rather than sound. Once you know what to look for, a lot of "random" cat behaviour starts to make sense.
The tail
| Tail position | What it usually means |
|---|---|
| Straight up, tip relaxed or curled like a question mark | Friendly greeting, confident |
| Held low or tucked under the body | Uncertain, anxious, or submissive |
| Puffed up, fur standing on end | Frightened, trying to look bigger |
| Slow swish while watching something | Focused, possibly about to pounce |
| Fast lashing or thumping | Irritated; stop what you are doing |
| Wrapped around their body while sitting | Settled or a little guarded |
The ears
- Forward and upright: alert and interested.
- Swivelling: listening to the environment.
- Turned sideways ("airplane ears"): uneasy or annoyed.
- Flat against the head: frightened or ready to defend.
The eyes
Slow blinks are one of the clearest friendly signals a cat gives. A 2020 study published in Scientific Reports found that cats were more likely to slow-blink back at, and approach, people who slow-blinked at them. Try it: look at your cat with soft eyes and close them slowly.
Pupils change with light, but large, round pupils in normal light can mean excitement or fear. Narrow pupils in a tense body can signal aggression.
A hard, unblinking stare at another cat or person can be a challenge.
The whole body
- Relaxed: loose body, lying on the side, paws tucked or stretched out.
- Belly showing: the cat feels safe. It is often not an invitation for a belly rub, and many cats will grab or kick if you try.
- Crouched, weight back, tail tucked: frightened, looking for an escape.
- Arched back with puffed fur, sideways stance: a defensive display. Back away calmly.
Sounds
- Purring often signals contentment, but cats also purr when stressed, in pain, or unwell. Look at the rest of the body.
- Trilling or chirping: a friendly greeting.
- Hissing, growling, spitting: clear warnings. Give the cat space.
Rubbing and head-butting
When a cat rubs its cheeks or head against you or furniture, it deposits scent from glands in its face. It is a social, friendly behaviour that marks familiar people and places.
When body language means see a vet
Sudden changes in behaviour, such as hiding, aggression when touched, a hunched posture, or reduced grooming, can be signs of pain or illness. Cats hide discomfort well, so take changes seriously and contact your vet.
Limitations
Individual cats differ, and signals depend on context. These are common interpretations, not rules. For setting up a home that keeps cats relaxed, see Litter box setup.
Not veterinary advice. This guide is general information. If your cat seems unwell, contact a veterinarian.
Sources and further reading
- Humphrey et al. (2020), The role of cat eye narrowing movements in cat-human communication, Scientific Reports
- International Cat Care, Cat behaviour
We link to primary or official sources wherever we can. Guidance changes, so check the source before acting on anything important.