Some medical conditions may not show themselves for several weeks, so repeat visits as outlined in the wellness portion on this page are very important. When picking out your puppy, observe from a distance how the puppy relates to the siblings. All of the factors can help you decide if the puppy is for you. Puppies that are submissive show this behavior by rolling over on their backs and often urinating from being scared. Be careful that you do not pick a puppy that is very submissive unless you are willing to spend more time reconditioning the puppy to socialize with humans and other animals.
Submissive puppies can also be biters out of fright.
Once you find the puppy you like, handle the feet, ears, face, and belly while talking in a calm soothing voice. Open the puppy's mouth and observe for pink gums around the contrast of white teeth. If the gums are pigmented as in chows or other breeds, you may have to look at the tongue, lips, or foot pads. A vibrant pink color is normal. If the gums are pale or white, the puppy should be examined by a veterinarian immediately.