If the Yorkie shoves you with his snout, if he whines and walks to the door and scratches on it, then this is respectable behaviour.
He almost communicates with you in an human way...

The dog's most important sense organ is its nose – ultra sensitive and linked to a very distinct taste sense, it transmits to the dog most of its perceptions...

The ears besides the brush make out the most important instinctive barometer of your Yorkie.
It's on the position of the ears that you can see your dog's mood. The most typical position is when the dog sets them upright or when it plays with them. This means self-confidence...