Pomeranian Yorkies can be very vocal when they want something or when they don't like something. Yorkies can also get lonely easily and feel anxious around people they don't know.
They are often barkers as well, so you will need to train them early on how to stop barking in public.
Some owners say that Pomeranian Yorkies are like children because they get bored easily and need constant attention from their owners.
So be prepared for this kind of behavior from yours because it's hard for him or her to entertain themselves alone.
You need to socialize your Pomeranian Yorkie as soon as possible so he or she can learn about other dogs and people in the neighborhood.