Dog behavior - licking?

[emma7181]

My dog always licks every person with whom he comes in contact. Is licking really an expression of affection ("dog kissing")? If not, and it's a evolutionarilyy-adaptive behavior, what purpose does it serve?

[lankeela]

Without knowing the dog I would imagine it is a submissive response. Dogs often lick people or other dogs as a sign of respect, acknowledging that the one they are licking is 'top dog'. My youngsters often do it to their mum/grandma, and granny responds by putting a paw on them and cleaning their ears or eyes, although if they get too much for her, she will floor them and stand over them when they roll on their backs and show their undersides, which again is a sign of submission. I suppose it is a pack thing, acknowledging the leader, and making sure they know they are not trying to take over.