A Pug mixed with a Chihuahua will produce a hybrid Chug that will vary much more in appearance and temperament than the purebred parents. Your puppy may inherit more characteristics from one or the other, or they may get an equal mix. Before adopting, it is recommended to supplement this Chug info by reading up on both parent breeds.
Don't let this little guy fool you. He may appear stubborn and energetic, but he is actually intelligent and eager to please. With a little patience (and a lot of treats) he can be trained and will remember commands well. Some Chugs have even been known to participate in agility and obedience competitions. It is important to start this, as well as socialization, at an early age so you can minimize the chance that he will be aggressive towards other dogs or standoffish towards people.
Well socialized Chugs are friendly with visitors and can live with other pets. They are playful and affectionate friends for children, and are an all-around great companion for anyone who can spend plenty of time with them daily. They are also capable watchdogs, barking at approaching strangers or someone at the door.
Although they are energetic, members of this breed don't need a large amount of exercise. A yard is not necessary and a daily walk will do just fine for them. They are not exercise companions and should not be overexerted physically. The elderly and owners that are not overly active will find this a good match.