Contouring isn't something that you'll want to do for your everyday makeup, because it's time-consuming. But for special occasions it will work beautifully to slim your face. Use a darker color to make the sides of your face recede, and a lighter color to bring out the features you want to draw attention to.

Highlighter is a very quick way to make your face appear slimmer, by taking attention away from the wider areas of your cheeks. You will need to apply it down the center of your face. Start between your eyebrows and work your way down. Put the highlighter on the bridge of your nose, then just above your upper lip, and finally on the middle of your chin.

Another trick to focus attention away from the wider parts of your face is to emphasize your eyes. Use a shade of eyeshadow that's flattering to your coloring, and add highlighter to the corner of your eye and underneath the brow bone. But to avoid drawing attention to your eyes for the wrong reason, make sure that you cover up any dark circles.

If your chin isn't quite as slim as you'd like it to be, your bronzer will come in handy to make it appear slimmer. Apply the bronzer along your jawline. Be sure to blend it very well, so that you don't end up with some very obvious stripes.

You can also use your hair to make your face look slimmer. But rather than using your hair to try to hide your face, which may not be terribly effective, use a clever color trick to slim your face. Color your hair ombre (darker hair with lighter tips). You can also color the strands around your face in a darker shade, with lighter highlights around the crown.

Cat's eye makeup is always in vogue, and it's a style that will help girls who want to make their face seem slimmer. This is because the line of the 'cat's eye' sweeps upwards. This draws attention to the outer corner of the eye and thus away from the side of the face where it is widest.

Another way to draw the eye away from the width of your face is with a shimmery product. Apply the product along your collarbone and cheekbones. Like the highlighter, this will reflect light on your bone structure, and thus make it appear slimmer. Use a powder or cream product.

While you can't do much to change the shape of your face, aside from losing a few pounds if you need to, clever makeup tricks like these can be used to give the illusion of a slimmer face. Contouring can change the look of your face, if you want to put in the time! Which makeup product could you not live without?