Ask the breeder not to give the puppy food or water the morning of pick-up when you will be getting them that same morning. Fasting will not harm the pup and reduces the likelihood that she will get carsick and vomit on the way home.
Ask the breeder about the way the puppy was raised and the type of personality she possesses (in the litter as well as alone), also how she scored on the Puppy Aptitude Test. Get a written record of the immunization and worming that your puppy has received, a copy of the pedigree, and the AKC registration slip.
Though you may have a specific type of dog feed in mind, it is best to continue feeding the brand that the puppy is currently eating for at least several more days, gradually changing to the new brand. Ask the breeder for several days supply of food to help wean the pup onto the new food.
Keep the ride home as relaxed and low-key as possible. Cover your lap and the seating area next to you with a towel or old bedsheet in case the puppy gets carsick. Let the pup ride in your lap or lie on the seat next to you, and keep one hand in gently contact. It is best to avoid any kind of coddling or doting behavior, especially if the pup starts to whine, since this only reinforces whining as an attention-getting behavior. A certain amount of whining is to be expected; if things are getting too noisy try putting the pup on the floor between your feet: the vibrations of the car often have a calming effect. Do not punish the pup for whining or vomiting. On the way home stop periodically so the puppy can stretch its legs, but avoid where other dogs go since your puppy is not fully vaccinated and is still vulnerable to contagious disease.
First allow her to eliminate in the proper area and praise lavishly. Then allow her to walk around and explore, keeping a close eye on her from a distance. Be calm and reassuring. If, while exploring, the pup shows interest in chewing something inappropriate, gently distract her by focusing her attention on a toy. Do not discipline the pup at this time. If not interested induce to play by clapping or rubbing your hand along the floor. Encourage is she starts to follow you around by tapping the side of your leg and calling her name.
Hold off feeding for at least a couple of hours until she has begun to settle down.
Introduce friends after 2 or 3 days of settling in so she can get used to you and your family as her own.
Puppies typically have to go following eating, drinking, walking, vigorous play, and chewing a bone.