Human: My friend has a dog and I want to get one, too. What should I know before buying one? Assistant: 
Before buying a dog, you should consider the size of your living space, how much time you have to spend with the dog, what type of training needs to be done, whether or not you will have enough time to exercise it, and if you are able to provide adequate food and veterinary care for the animal. Additionally, research different breeds to find one that best fits your lifestyle and budget.