[header] How to choose a puppy by temperament [title] Learn all you can about the different temperaments puppies can have. [step] In general, puppies are classified as responsive, nervous, aggressive or independent. [substeps] A responsive puppy is adaptable and binds well with humans, which makes it a good choice for a first-time dog owner. 
A nervous or shy puppy is unpredictable, and not a good choice for families with children or other busy households. An aggressive puppy is dominant, sometimes unpredictable and does best in a household without children or other pets.