It's very simple! First, pick your favorite shade of contour. You can choose from a range of shades to suit your skin tone. Then, apply the contour with a brush or your fingers. Apply the contour on the sides of your face, following the shape of your cheekbones. Blend the contour outwards to create a subtle shadow, giving your face a more defined appearance. Finally, use the highlighter shade to brighten your cheekbones and give your face a youthful glow.