Each Yorkie has it's own personality, so be sure to get as much information from the breeder as you can to make the best choice for your family.
Annie was very much a Princess and cuddle bunny. She wasn't at all interested in playing and rough housing with Boo.
When we went to pick out our puppy, there was one what was going to be just like Annie and one that was more outgoing and interactive. I would have been happy with the quiet one, but the best fit for our family was the more outgoing girl. She would fit in better playing with Boo, going out for walks and other activities. We decided on her, our Gracie Ruth, and she is perfect for us. She's still young and more into the play then cuddling, but she is learning that cuddle time is fun too and getting better at it.
Take your time when you go see the puppies, ask a lot of questions, spend time with each of them individually if possible and watch how they interact with each other. Of course all that gets thrown out the window if one of
them picks
you.