You'll also want to be paying attention to your face shape when applying makeup. It may not seem like a big deal but whether you have a round, square, oval, inverted triangle, diamond, or any other face shape makes a difference when applying your makeup. If your face is vertically elongated you'll want to make it appear shorter and you'll do this by contouring the peak of your forehead, your jawline, and your cheekbones. If your face is round you'll want to make it appear thinner and you'll do this by contouring your cheekbones and the outer left and right sides of your jawline and forehead.
If your face is square-shaped you'll want to make it appear more oval and thin and you'll do this buy contouring the upper left and right side of your jawline and forehead. The ideal face shape is said to be oval, so your main goal when contouring is aiming to make yours appear as an oval shape.