Our milking does, and sometimes the bucks will give you kisses. What this is as you get your face close to theirs, they raise up and nuzzle you. They press their wet nose to yours. It is a sign of affection and trust. All of them will give you some, but some that you have a special bond with will provide you with more.
This picture is of “Big Moma,” aka Lois, our herd queen. She is a gentle giant who rules with an iron hoof and a heart of gold. She gives lots of kissies!