Some of the most confident people you've met aren't naturally confident. They're either faking it or they've trained themselves to be more confident. Or both.
Frank Perdue was known nationally as the salesman who built one of the largest family businesses in the country but his greatest success might have been overcome his reluctance to even talk to people.
Though Apple's senior vice president of design may be shy, a poster in his office screams, 'Believe in your f*cking self. Stay up all f*cking night…Think about all the f*cking possibilities.'