Based on the responses given...I have a question....what are you shooting for in this situation as far as the dog's bodyspeak? I do not disagree with the observations made as I sense the dog is really "trying"....nothing wrong with that....could be new to this particular game amongst many things.
My dog was showing the same signs in a park we train at mostly licking lips (just not as much as this dog) with Kids running around playing etc behind him. He has been around children and does really well with them. Trainer said to pay more attention to his signs that hes nervous. I am researching signals of anxious dogs. yet when I came across this video the comments on you tube said they dont see any signs of nervousness. From what im learning it is, so Im asking if there are other signs that this dog is giving off that means the lip licking is not anxiety or I am seeing it right that it is.