Are you a cat or dog person?  I tend to lean towards cats.  I love watching their antics.
I consider myself a cat person, but I think it's interesting how we equate our animal prefernces to a part of our personalities. 
Yes, that's true.  Both are great pets but there's something about cats that I just find amusing.
Do you have a cat? The term is often used by people who don't even actually own a pet.