[Ilovemypuppy]

All of the above, but then, if possible, go visit the breeder's establishment. Lots of red flags there to watch for...including, but not limited to...cleanliness of the area where the dogs are kept, the reaction of the dogs to your visit, their manners or lack there of..indicating whether there has been any training in place and whether or not there is evidence of socialization and training efforts on the part of the breeder of the puppies before they go to their new homes.

There are lots more things one might look for as well..maybe others could chime in.

If you do go to the breeders' and you do see things that are not right, don't be naive in thinking you can fix some of the things that are not done in the early stages of the puppies' development.