Plan your eyebrow shape. "The front of the eyebrow should be the thickest point and the tail of the eyebrow should be tapered, kind of like a sperm," she joked. Then, make sure to choose the right color. "Your eyebrow filler should be a couple shades lighter than your actual root color," Chani explained. Pick a shade that matches your actual eyebrow hair and you'll look like you used a crayon, the makeup artist warned.