Most Helpful Guy
Guys (and girls) are generally attracted to someone that has a similar style to themselves. So, the first thing to do is figure out what style YOU like and enjoy. If you like heavy mental music and dressing like an "emo" then go for it! You will meet guys that like you because that's your style.
As soon as you start changing who you are to try and seem more "attractive" to the opposite gender you start down a slippery slope. You're likely to wind up unhappy and in a relationship built on lies.