The easiest—and most instantly transformative—part of your face to contour is your cheekbone area. Start by using a flat brush to apply a bronzer directly underneath your cheekbone; the place where there's a slight recession in your cheek. "Use it like a paint brush," Janessa instructs. "After you've applied that first part, turn the brush the other way and use the clean edge to blend the edges of the makeup, softening the top and bottom without disrupting the concentration of color."
Once it's blended, use your index finger to find the highest point of your cheekbone by placing it diagonally on your face against the bone itself (it tends to be the kind of thing that you can feel more accurately than you can see). Once you've identified the angle and its highest point, pat highligher into that point, working it upwards towards your eye. Then, use your index finger again to figure out where your brow bone is, and pat highligher there, as well. Basically, you should be creating a sideways V around your eye, coming to a point at your temple.
Finish the look by combing your brows to give your face a nice frame. You don't need a lot of other makeup here—let your cheekbones speak for themselves.