Here are suggestions from the American Academy of Pediatrics on how to encourage good behavior in your child:
Keep your child's age and develop in mind when you ask him or her to do something.
Make realistic rules and keep them.
Try not to reinforce negative behavior.
Day to day, try to be consistent in your goals and discipline.
Stay tuned into your child's feelings. They may be a clue as to why he or she is misbehaving.