show that you are responsible..do chores without asking, do what you're told right away, etc. puppies are a LOT of work and take a LOT of patience and need training. no puppy/dog is cheap either. AND make sure you tell your parents that you will help them out with the puppy and do it. If your parents won't go for a puppy, then I suggest that you ask them if you can get an adult dog. Good luck. also, there are a lot of adult dogs that need homes in shelters/rescues, too.