[onscreen action] Two puppies playing with a single, rabbit-shaped dog toy.[narrator] The most critical time for puppies to be exposed to social situations is during the first three to four months of their lives.[onscreen action] Man sets puppy on floor of living room, young girl gets off couch and pets puppy.[narrator] During this time, puppies should be introduced to as many new people and safe environments as possible.[onscreen action] Man outside lets puppy sniff around various plants.[narrator] Doing this will decrease the risk of your puppy developing behavior problems later in life, including fear, avoidance, and even aggression.[onscreen action] Man and young girl in living room play use rabbit-shaped dog to to play with puppy.[narrator] Now, a great way to get started socializing your puppy is to enroll in puppy classes![onscreen action] Group of four people with their puppies in a room.[narrator] Puppy classes will provide your dog with important life lessons and training, plus exposure to other puppies and people.[onscreen action] Closeup of people training their puppies to sit.[narrator] Your dog will learn how to interact with other people and dogs in a safe environment that promotes fun and learning.[onscreen action] Two puppies sniffing each other.[narrator] Also, ask your friends if you can bring your puppy over to their house from time to time.[onscreen action] Man sets puppy on couch next to second man.Both men pet the puppy.[narrator] Having your puppy meet all kinds of people in different environments will be great for his social development.[onscreen action] Man in livingroom sitting on floor, playing with puppy.[narrator] Try to include as much variety as possible, such as men, children, seniors, teenagers, as well as people with hats, sunglasses, coats, those on bikes, rollerblades, and more.[onscreen action] Family with young children sitting in livingroom, playing with a puppy.[narrator] Most everyone loves to pet and play with puppies, so use this to your advantage.You can even ask friends to hand-feed your dog some of his daily meal.However, if your puppy's fearful, don't force him.[onscreen action] Montage of people hand-feeding a puppy.[narrator] Instead, give him some space, but continue to offer him treats just for hanging out.[onscreen action] Group of four people and their puppies in a room.Puppies are all playing with each other.[narrator] Remember, even after three months of age, continue introducing your dog to as many new people, places, and learning experiences as you can to help you achieve a social pup you'll be proud of.[onscreen action] Puppy casually sitting on floor.