Colors
There are people in design and in the fashion industry that have spent years studying the power of colors and what each of them means to us. Do not just think that colors have no effect whatsoever on the human mind, they can speak right to our subconscious, without us even realizing it.
Red and other warm colors are aggressive in nature and can also be very passionate. Try wearing a red dress out on the street, compared to a black one, and see how many people give you the eye on the street as they walk by. Never miss a chance to use colors to their full potential.