Reasons and meanings why dogs lick people:
1.Dogs want to confirm if you are close to other dogs.
2.Dogs want to gather information about you.
3.Dogs want to express emotions and show affection to you.
4.Dogs may need help and want your attention.
5.When dogs want to eat, they may lick you as a hint.
6.Dogs are afraid of loneliness and want your company and attention.
How to respond to a dog's licking behavior:
1.Ignore the dog's licking behavior. Impatient reactions will only make the dog bored.
2.Refuse the dog's licking behavior seriously and give a command to reject it.