Cats lack some facial muscles humans use to smile. Their upturned mouth corners are often just their neutral face.
Anatomical Difference
When relaxed, content, or breathing in certain scents, cats may involuntarily draw up their mouth giving the impression of a smile.
Smiles
Instead of smiles, cats show happiness through body language like soft eyes, upright tails, and affectionate rubbing against owners.
Express Joy
Cats may develop an upward mouth shape associated with things or moments they find positively stimulating.
Positive Associations
Cats purr loudly in low, steady tones when relaxed and in higher, warbling pitches when seeking food or affection.
Purr Sonorities
Slow blinking, soft eye focus and facial muscle relaxation indicate your cat feels safe, content, and connected with you.
Eyes and Blinks
When cats voluntarily seek contact, affection and playtime with you, they are expressing bonding and happiness.
Love