Happy cats have a loose and relaxed body posture, free from tension or stiffness.
Purring indicates a cat's contentment and happiness.
Happy cats engage in play, showing interest and enthusiasm in their surroundings.
A happy cat has a healthy appetite and shows interest in food.
Happy cats seek social interaction and show affection towards their human companions.
Happy cats have relaxed eyes and neutral ear position, conveying a sense of calm and contentment.