A lot of times the way a person feels in reflected in the way they look and act. A person with confidence is always more attractive to others than someone who hides in a corner. Most of the time that person in the corner won't get noticed, while the one with confidence is standing in the middle of the room laughing and telling jokes (not even necessarily the center of attention). I have realized that confidence is one of the most attractive qualities just by taking a look at myself. I wouldn't call myself a physically attractive person, so I attribute the fact that guys I work with are attracted to me to the fact that I am very confident while I'm working. I don't know how, but if you are confident, it shows and it attracts others. Confidence is in the way you interact with other people, the way you smile, and the way you hold yourself (posture).