Dogs may not have the ability to speak and relate in the same manner as humans, but they are quite perceptive about their owners. In fact, dogs know at least 13 secrets about you and your behavior. It’s all based on the dog’s ability to sense certain things about people that would otherwise escape notice.
Your facial expressions alone inform your dog when you are bummed out. Dogs are more likely to approach someone who is crying rather than humming or singing because of their empathy to those who are feeling sad.