Dogs live in a human world, it's important for dogs to understand people - all sizes shapes and colors. Early, positive exposure to lots of strangers, with praise or rewards for good behavior, will help your puppy become a well-adjusted dog.
Invite friends to your home to meet and play with your puppy. Ask adults to crouch down and avoid sudden movements when meeting your puppy. If you don't have children of your own, invite friends over who do have children and have a supervised play session. Be sure children know not to pick the puppy up, or to move too quickly. Puppies will chase children that run, so be sure to instruct young children to not run. Also talk to children about mouthing - see "Children and Puppies".
Once your puppy's shots are completed, begin taking him to public places such as parks, where he can meet lots of friendly people. Also, make a point of introducing your dog to people of different ages and races, people in uniforms, and so on - dogs can be wary of people who seem "unusual" in any way.
It is paramount to remember you are teaching your puppy to be comfortable with people, and to behave around them. Behavior that is cute in a puppy, such as jumping and barking, is no longer cute when the dog is an eighty pound adult with a mature voice!
