To choose a puppy is a very important decision because he will be a new component of our family and he will be a commitment that will last many years. The puppy will become a great dog to which we will ensure affection, nourishment and care for a long time. First of all we have to choose the breed suitable, thinking to our style of life, to our daily routines, the house, to neighbours, to our work, to the presence of other animals, to the most common diseases in our territory, the available budget, etc. If it is not expected to a breed in particular, and it is decided to take a half-breed, is necessary to take its probable size by adult and try to understand from what breeds may have originated. Once decided the type of dog, you have to decide whether male or female, since there will be differences in the management of one or the other. If you have the possibility to choose the puppy having available litter, we must try to understand the nature and the temperament, since there will be that more timid, the more playful, the most stubborn, the most courageous, etc... In any case is very important to not expel the puppy too soon from the mother and by the brothers, not before 80-90 days, because in that period he learns a large part of behaviour which will use in adult  age in respect of its similar and is a fundamental rule to increase the possibility of having a balanced dog.