I think it really depends on the dog...Turbo doesn't like being hugged, he'll yawn when I go in to hug & kiss him, then he'll flip over for a tummy rub LOL.
Mimi doesn't like it either, she'll yawn really big & even shake her head a little. I still hug & kiss her anyway.
Momo loves making out LOL...only thing he doesn't like is head pats, he'll dodge those.
Princess is my little shadow, so loves huggles & kisses.