Having raised yorkies for over 13 years, I have to say that the majority of my babies would give kisses, without even being asked. I love to teach my pups to give kisses. There are always exceptions. I have one 9 year old girl that will not kiss on demand and I have raised her from a pup. When she is ready to give me a kiss she will sneak really slow up to my face, stare at me for a few moments and then give me a slow kiss. She makes it a very special moment since she is not normally in a kissing mood. I have one 6 month old pup that does not give just kisses, she gives face washes.