I recommend going bare-chested, wearing a kilt, the shrunken heads of the punks who made fun of you on the bus the other day tied around your neck on a hemp cord, a claymore strapped to your back and a kukhri in your belt, and at least half of your face daubed with blue woad war paint.
This will effectively communicate your intrinsic motivation, dedication to the aims of the organization, and your latent aggressiveness, as well as your deep-seated desire to rise above the rest. Plus, the look-cool factor is unbeatable. 8)