Signs of affection and happiness: Tail standing straight up: An expression of feeling "happy" or "wanting to be pampered." Slow blinking: A sign of trusting the other person and feeling at ease. Purring: Feeling good and in a pleasant mood. 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 back (airplane ears): Feeling scared, uncomfortable, or wary. Hissing: An expression of strong intimidation or anger. Signs of anxiety or fear: Pupils dilating: In a state of surprise, fear, or intense tension. Crouching or shrinking the body: Feeling threatened and trying to protect itself. Cats are animals that express their feelings using their bodies, and their gestures and actions carry various meanings. You can read a cat's emotions from various body parts such as the eyes, ears, tail, whiskers, and the whole body. When they are at ease, feeling 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 of as cool and detached, they are actually animals with very rich emotional expressions. They cannot speak human language, but instead, they try to convey their feelings to their owners through actions and reactions. The act of a cat slowly and repeatedly blinking represents trust and affection toward a human. By blinking slowly, they send a sign to their owner that they are in a state of comfort and peace. On the other hand, when a cat moves its tail so fast it almost makes a "whoosh" sound, it may be in a bad mood or has found an "opponent" to fight. In these moments, you must not touch them forcefully.