I have a new foster male older pup (about 8 months). He is constantly licking me when I pat him (and when I don't) and also licking my other dogs all the time. I am guessing it may be an anxiety issue but not sure how to stop it. He's a gentle natured boy and seems happy since he's settled in, gets on very well with my other dogs (no disputes so far) and the licking was there right from when I picked him up so am guessing it's not the new environment. Any suggestions are welcome.