Aww, how exciting for you

!!! You sound just thrilled to possibly be owning a yorkie in your near future. I'm very impressed to hear of how your breeder is realllllly picky about where the puppies go, bc that shows they truly care about these precious ones, and that means a lot.
Try not to be nervous, I'm sure it'll go great! Share your pics, talk about the good vet care / preventive care you provided your past kiddos, what you fed them, how you cared for them, how precious they were to you. To me, it sounds like if you speak from your heart - it will all come out really great!