You can tell who wields power by the way they act. In the 'modern', 'civilized' world, you can't, but at raves, in the 'bad' part of town, in dank alleys so full of refuse that they make you feel like trash, you can. It's all in the stance...relaxed, back straight but not rigid, hands open as if to say 'hey, I don't need a weapon or a fist to bring you down. I can get someone to kill you for me.' It's true; they can kill you, a million different ways. Junkies vanish or OD or get mowed down in a drive-by every day, and nobody really wonders why. "Maybe it was their fault, but maybe, just maybe--no, that can't be true." Thoughts like this are too hard to dislodge...nobody will care if you're gone.
Dealers know this, and they show it in everything they do. They don't care who notices. They are the ones who hold raw power, and they don't need a suit or handcuffs to show it. Dealers--the real dealers, not the runners and hawkers who negotiate time, place, amount, and price--can be spotted a mile away, once you know what to look for.