Take a look about "how to choose a cat" from a blog which name is my pet cats. It writes about how to choose a cat, "To choose a cat before adopting that as a pet you should care something which is here -

"Before you actually get a cat, figure out what kind of cat you want: kitten or grown-up cat; longhair or shorthair; purebred or alley cat; male or female; tabby, patched, or solid-color.

If you've got your heart set on a particular size, age, sex, breed, or look of cat, do a little extra research before you set out to find one. You might be surprised to find that the look you love doesn't fit well with your lifestyle. For example, if you like a quiet home, a Siamese may not be the cat for you: They're notorious "talkers." Likewise, a Persian is gorgeous to look at, but unless you're committed to do almost daily grooming (or to pay a professional to do it every week or so), a nice shorthair cat might be a better idea. Do you travel a lot? Then you need a more mature cat -- at least eight months old or more. Two cats are better still so they can keep each other company while you're away...Ream More...