Acknowledge your flaws, and no one can use them against you. Maybe you're a bit corny, or find that you're subconsciously dedicated to a certain brand. There's nothing wrong with that, not being the coolest person ever isn't the end of the world. But a sense of self-awareness does wonders for figuring out how you want to present yourself to the world. Maybe you'll stop rocking head-to-toe gear with the Jumpman logo, get a haircut that isn't a faux hawk, or stop wearing bright belts. Realizing how dumb certain things make you look is just one part of the process of figuring out personal style.
4. Gain a sense of self-awareness