Dogs lick to show love and care to their people, and often do so to get your attention. When you reciprocate it with petting or other positive affirmations, it reinforces the bond they are trying to create. It releases endorphins which are neurotransmitters that calm dogs down and make them more relaxed- and this, in turn, releases dopamine, which is associated with pleasure. Essentially your dog emotionally feels better after licking! Licking also enhances a dogs sense of smell, and when you sweat, you emit lots of things dogs love to smell and taste- hence why they love licking your...