Ask any visitor that involves visit to handle the puppy all over; touching the paws and sense among the toes; using the ears; providing restrained hugs; using the mouth area and starting the mouth inserting your finger on the puppy's tongue. If possible expose your pup to children and instruct them the way to handle the doggie properly. Constantly be sure when children and pups are playing along they are supervised. You do not want the kids to learn too approximately with the puppy dog and you do not want the dog getting so hyped up by antics of children and becomes out of control.
Puppy preschool or kindergarten is a superb avenue for socialization with other puppies of an identical get older. However, the issue arises from the question of puppy dog vaccinations "could it be safe to have a puppy out during this time?" This is a problem because on the main one hand you want to train your pup to be sociable but keep carefully the puppy safe at exactly the same time.