Look At Their Eyes
When a dog’s eyes are half closed it is a sign of submission or pleasure. Whereas when their eyes are wide open it can indicate that they are somewhat aggressive.
When living in the wild dogs will stare at each other until one of backs down or challenges the other. Therefore do not try to outstare your dog especially if they are of a nervous nature.
Is Your Dog Smiling?
Submissive dogs and certain breeds like Labradors will often have their mouths open so that it looks like they are grinning lopsidedly. This is clear sign that they are being friendly towards you and others. But when you see their lips are drawn back and teeth are bared keep your distance this is clear sign of aggression.
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