Rashad Prendergast, 18, is not your typical teenager. He is nicely dressed in business attire, tie included, with a well-trimmed moustache and goatee. No tattoos or piercings are evident. But most noticeable is the way he presents himself — speaking cordially as if he really is interested in talking to an unknown adult. When asked about himself, Prendergast is comfortable talking about his achievements but doesn’t brag.