It's tough picking a pup for specific traits at a very young age. Research the litter and pay close attention to the blood lines. Once you've done that separate the pups into two groups based upon their sex. Then close your eyes and reach into the appropriate group and pick your pup.
I bought my first pup at half price because she was one of two shy pups in the litter that were getting picked upon by the other bolder pups. She turned out to be the most dominate dog I've ever owned.
