Does how you carry yourself determine 'coolness' or 'attractiveness'?

Practically speaking, first impression counts. And today's society does obsess over looks to create an instant impression. However, most people are not shallow and this will come across when people interact more. so in the long time, john will be seen as the better person (at least when people are mature enough, and i mean beyond high school when i say that). However, the best will be to balance both personality and looks. you don't have to splurge all the time in clothes and make sure every strand is gelled in place. in fact that can look too plastic and work to your disadvantage. but looking neat, and not too outrageous (like dressing like lady gaga to class or work) should work