lick

Can anyone help me ? Alfie (13 months) thinks he's a lizard. Every time he sees anyone his little tongue starts going in and out. It's not such a major issue with us but not everyone enjoys being licked by him. At first we thought it might be the salt he was after as it has been pretty hot but...

A number of things I've read state that a dog's licking of a human is an instinctive act of recognition of the pack leader. I'm sure it's individual choice, but how much, if any do you allow? I'm not that comfortable being licked but want her to have a natural canid life to a certain point...