Relaxed body posture: A cat with a loose and relaxed body indicates happiness.
Contented purring: Purring while being petted or in a calm state shows a happy cat.
Playful behavior: Engaging in active play indicates a cat's happiness and mental stimulation.
Healthy appetite: A good appetite and enthusiasm for food demonstrate a happy cat.
Affectionate gestures: Seeking physical contact, rubbing, kneading, or purring while being petted shows a contented cat.
Alert and curious: A happy cat will display bright, attentive eyes, upright ears, and a lively interest in their surroundings.