Yorkies are not your run of the mill "DOGS"
 
They have special quirks and needs to them 
and some people like these traits and to some they can drive you to drink
But if you catch them early
you can head off the really bad ones at the pass 
Yorkies might be small but they are terriers and they LOVE to dig chew and explore
That might be bad news for your house
A yorkie puppy can be a one dog wrecking crew if you let them
You MUST put anything and everything that he can get to out of reach
and you have to watch them like hawks
It's never too early to start the drop or Stop training 
Meaning when you say No! or Stop! or UH! or clap you hands They immediately stop what they are doing 
With a small puppy ... the way you do this is 
give him a toy .... say UH! and see if he looks at you
If he does and drops the toy
GOOD BOY  ... and treat him
keep repeating that 
  Barking is the same thing .... you have to get their attention
a noise the UH! command and GOOD BOY
But with such a small pup you have to corral them 
giving them free rain is just asking for trouble ... leave them in one room from the start and as they grow and learn the rules of the house then you can let them roam more
Good Luck