Now you have your puppy, the clock is ticking and you need to meet three more Developmental Deadlines before your puppy is five months old.4th Developmental Deadline - Socializing Your Puppy to PeopleYour Most Urgent Priority is to socialize your puppy to a wide variety of people, especially children, men, and strangers, before he is twelve weeks old. Well-socialized puppies grow up to be wonderful companions, whereas antisocial dogs are difficult,...