Your dog isn't smiling because they find something humorous. Instead, they're smiling because they are calm and relaxed and, because of that, one could venture that your pet is happy. Similarly, some dogs will appear to smile if they are showing submission to their human counterparts. 18 сент. 2020 г.
What does it mean when a dog tries to smile?
Can dogs smile? ... This “dog smile” usually occurs in situations when they are relaxed and appear happy, which is why dog owners think it is a smile. These “dog smiles” also often occur in response to a human smile, which is a phenomenon called laughter contagion. Dogs may appear to smile because we smile at them.
Why do dogs smile for no reason?
Dogs tend to read the body language that goes along with a human's smile. They often instinctively understand that smiling and showing teeth is not a human form of aggression (as it might be with other dogs), even if the person is a stranger.

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