Socializing your pug doesn't have to be a lot of work if you gradually do it as he ages. Never allow him to growl at children and try to correct him if he is acting aggressively around other dogs. Pugs are naturally energetic, so he may need a lot of exercise, which will also help if he barks a lot.

Most of a Pug’s behavior habits are formed from birth to one year of age. When you bring your new puppy home, it is important to get it accustomed to different sights and sounds.

Growling can lead to biting. Be stern, firm, confident, and consistent.

You may need to touch your puppy in a way that the mother would (mimicking a mother dog). Puppies like to play.

Take your puppy out often. Show your puppy all kinds of sights, sounds, people and animals.
If you are able to it’s a good idea to walk your Pug with other dogs before going to a dog park.
Always correct your puppy if he shows any signs of aggression or domination toward another animal or person.

Teach your children to respect the puppy, and teach your puppy to respect your children. NEVER tolerate growling, even with Pugs.

Three weeks to three months is a critical age in socializing your puppy. This is when most of his behaviors are being formed. For this reason it is important to find a breeder who takes time to socialize their puppies.

For a Pug dog, life is all about the moment, and you can, at any time change the way it views its surroundings. In order for you to do this, you yourself will need to be in a firm and confident mind-frame.

Pug’s can read human emotions and if you are anything but, you can set your dog off.

A Pug will feed off of the way a human feels. If you are unstable, anxious, worried, nervous, scared, hyper, etc., your Pug will feel this. Fearful Pugs sometimes act out with aggression. Pugs NEED a strong-minded leader.

As Pug Love points out above, pugs need an active parent that'll teach them right from wrong. You can't be afraid to enforce discipline, but in a kind way of course. Never hit your dog; instead, be firm with your words and over time he will learn to respect you as the alpha “dog” in the house. Build a relationship with your puppy and he will want to please and adore you just as much as you already love him!