Since ancient times, people have said that dogs are very spiritual and human. Dogs shed sad tears when they know that their owners may do things that are extremely unfavorable to them. In some areas, I have also met people who want to eat dog meat. At first, they didn't treat the dog well, and the dog ran away. Later, the breeder called it back, then covered the dog's head and continued to treat it. When it was finished, I opened the bag and saw that the dog's eyes were actually wet.
Dogs sometimes cry because of some irritation or pain, not necessarily because they are sad. After all, dogs face some exciting things and some pains, and sometimes dogs will leave such tears. We can see if the dog is abnormal, for example, if the dog intentionally lifts some feet or is particularly taboo to some parts, then we can observe whether there is trauma or whether there is such infection. If there is, timely treatment can calm the dog's mood.
It is very common to soothe the dog's emotions. In fact, it is to touch the dog's head. Dog owners actually know this very well. When we touch the dog's head, the dog will appear very good, sometimes licking us and even wagging its tail at us. The reason why the dog does this is mainly because we touch its head and it has relaxed, and this action can also make the dog feel our friendliness to it, so this way can effectively calm the dog's mood.