Eyebrows, a seemingly insignificant facial feature, contain so many rich emotions and expressions of humans. From shape, thickness, color, each pair of eyebrows is the unique identity of that person. Eyebrows are not only an "indicator" of emotions, but also add depth to facial expressions, coordinating with eyes to create richness and diversity in communication. A gesture as small as lifting an eyebrow, along with a wink, can convey a stronger message than a thousand words. In shaping the...