There are a lot of people who measure 'coolness' on the physical. If you were to bump into me Monday-Friday then I would not be 'cool'. As I've mentioned in a previous Facebook status, being cool is being yourself, and there is no greater person to be than yourself.
I also believe that you shouldn't always take yourself too seriously in life. Check out my latest youtube effort and decide for yourself whether Jsky is cool or a fool! (...or a cool fool being uncool!?)