Spay or neuter your dog. Dogs who have not been spayed or neutered are 3 times more likely to bite than are dogs who have been spayed or neutered.
Train and socialize your dog so that she is comfortable being around people, including friends, neighbors and children.
If you don't know how your dog will react to a new situation, be cautious. When an unfamiliar person comes to the door, be sure to safely restrain your dog in another room before opening the door.
Don't pet a dog, even your own, without letting him see and sniff you first.
Don't disturb a dog who is sleeping, eating, or caring for puppies.
If a dog attacks, you may be able to decrease injury by "feeding" him your jacket, purse or anything else that can serve as a barrier between you and the dog.