Puppy preschool or kindergarten is a superb avenue for socialization with other pet dogs of an identical age. However, the issue comes from the question of doggie vaccinations "could it be safe to take a puppy out during this time period?" This is a issue because on the one hand you want to train your puppy to be sociable but keep the puppy safe at exactly the same time.
Ask any visitor that involves visit to handle the puppy around; coming in contact with the paws and sense in between the toes; playing with the ears; providing restrained hugs; using the oral cavity and opening the mouth placing your finger on the puppy's tongue. If at all possible expose your puppy to children and instruct them the way to handle the puppy properly. Constantly be sure when children and pet dogs are playing mutually they are supervised. You don't want the kids that can be played too approximately with the doggy and you do not want the dog getting so hyped up by antics of children and becomes out of control.