>>8667116I totally have this same issue!
So as you know, contouring is probably the best bet. In contouring, the eye is going to be drawn towards the highlighted bits of your face. The contour in the chart on the left is emphasizing cheekbones, narrowing the forehead and narrowing the face at the temples. See the placement? They're just drawing in shadows to de-emphasize certain features.
Basically, to slim down cheeks, you want to take a bit of your contour color and fluff it along the outside of your face, going from the temple all the way down to along the jaw line. It's a bit of a C shape. Be sure to blend it so it looks natural. After that, you can do the cheekbones like in the chart (fluff the contour color right under your cheekbones in a general downward direction towards the corners of your mouth, but don't go too crazy! I normally just go about two inches down, myself) or you can just opt for blush.
From there, you want to keep your highlighting towards the center of your face, because that'll draw the eye in and slim your face out. So that's going to be highlighting on the top of your nose, the cheekbones, the center of the forehead (think of it as a fan shape that extends out from between the eyebrows), the chin. And definitely well blended. Of course, some people just do strobing these days (emphasizing the highlighter instead of using any contour shade), but I tend to find that can look a bit greasy in real life.
The thing that's probably going to help the most is just sitting in front of a mirror and doing some experimenting. Just see where natural shadows tend to hit your face when you have a light source in front of you and use that as a guide.
