Signs of affection or happiness: Tail held straight up: A sign of feeling happy or wanting to be pampered. Slow blinking: A sign of trust and feeling safe with the other person. Purring: Feeling good and content. Signs of anger or caution: Swishing the tail quickly: A sign of irritation or being in a bad mood. Note that this is the opposite of a dog's behavior. Flattening ears backward (airplane ears): Feeling scared, uncomfortable, or wary. Hissing: An expression of strong intimidation or anger. Signs of anxiety or fear: Dilated pupils: In a state of surprise, fear, or intense tension. Crouching small: Feeling threatened and trying to protect itself. Cats are animals that express their feelings using their bodies, and their gestures and behaviors carry various meanings. A cat's emotions can be read from various parts of the body, including the eyes, ears, tail, whiskers, and the whole body. When they feel safe, affectionate, sleepy, or comfortable, cats will purr. Generally, a low-pitched voice represents intimidation, caution, or anxiety. Conversely, a high-pitched voice represents a request, affection, or a danger signal. While cats are often thought to be cool and detached, they are actually animals with very rich emotional expressions. They cannot speak human language, but they try to convey their feelings to their owners through their actions and reactions. The act of a cat slowly blinking repeatedly represents trust and affection toward a human. By blinking slowly, they send a sign to their owner that they are comfortable and at peace. On the other hand, when a cat moves its tail so fast you can almost hear a 'swish-swish' sound, it may be in a bad mood or has found something to 'fight.' You should not force contact at such times.