Summarize:

Register your litter with the American Kennel Club shortly after whelping. This will demonstrate to potential buyers that you're a responsible breeder, and it will establish each individual puppy as an important part of the betterment of their breed. New owners of these puppies will have access to the group's events, services, and information. The price of Shih Tzu puppies can range tremendously, so you should set a price for yours and stick to it. Prices is based on whether or not the puppies have already been vaccinated, the prices of other local breeders, and your reputation as a breeder. Being consistent about your prices will give you credibility as a serious breeder. You should put a lot of thought and effort into choosing new owners for your Shih Tzu puppies, and make sure that potential owners are making the right choice for their lifestyles. Shih Tzus are excellent companion dogs who do not require a lot of exercise, but require daily grooming; if buyers are looking for a more playful and energetic breed, or if you simply do not think a Shih Tzu is what they want, do not sell to them. Good breeders are responsible for the well-being of their puppies long after they are sold.
Register the litter. Establish your price range. Find good homes for your puppies.