A good leader must be proactive in the proper socialization of their dog. An ideal social situation involves off leash interaction , not sniffing at the end of a leash.
For young puppies, choose playmates of similar age and adults who have been well socialized themselves.
Just turning dogs loose together to play is not socialization. There must be supervision and intervention when the potential for a problem appears. All dogs should learn to play nicely and respectfully. If there is no supervision and intervention some dogs may learn to be fearful while others learn to be pushy and rude.
A good leader pays attention to their dogs behavior and helps him/her to learn proper manners and keeps them safe from harm.
Here are some dos and don’ts for proper socialization:
DO respect the fact that your dog has a need for & right to his personal space.
DO socialize your dog so he/she is wise in the ways of other dogs.
DO accept the inexplicable disliking your dog may have for another dog.
DO build your dog’s tolerance levels through repeated, positive experiences.
DO continually educate yourself regarding normal and appropriate canine behavior in any given situation.
DO plan ahead to how you will handle difficult situations, people or dogs.
DO pay attention to your dog when you are with him/her.
DO insist your dog behave politely.
DO honor & respect your dogs concerns, whether or not you share them.
DON’T put your dog in a situation you or he/she are not prepared to handle
DON’T turn a rude puppy or dog loose with an intolerant adult.
DON’T expect your dog to like every dog he/she meets.
DON’T allow your dog to become overexcited or rude – help him/her find a more appropriate behavior or remove briefly form the triggering situation.
DON’T allow other people to allow their dogs to be rude to your dog.
DON’T punish a dog for telling another dog to get out of his face.
DON’T punish an adult for reminding a puppy to mind his/her manners.
Dos & Don’ts excerpt from He Just Wants to Say Hi! Article on rude dogs & dealing with aggression by Suzanne Clothier. Flyingdogpress.com