What style do you need to have to be considered a really cool girl? It should be fairly aggressive style of music and clothes in which you show your independence from the parents, school and traditions! For example, the style of rock or emo. You can dye your hair in any unnatural color and make bold hairstyle. Pierce not only the ears, but the lips, tongue and eyebrows, even if the parents feel strongly about it. It’s the same with the clothes!