Some of us don’t bother asking for things because we don’t think it’ll make much of a difference. If you’re afraid to speak up because you don’t think you’re terribly persuasive, you’re probably not giving yourself enough credit. Harvard Business Review’s Vanessa K.
Source: http://lifehacker.com/youre-more-persuasive-than-you-think-so-dont-be-afraid-1722129838