Here's How:
1.Purchase two shades of blush, one of a deeper shade and one that's lighter. To ensure the shades go together, purchase a compact with two coordinating shades.
2.Apply your usual foundation make-up or powder to cover any imperfections and even out your skin tone.
3.Apply the lighter shade of blush in circular motions onto the apples of your cheeks... how are you to find them apples? Just smile!
4.Next, following the line of your cheekbones, apply a sheer sweep of the deeper shade of blush.
5.Blend, blend and blend. The key with this trick is to create dimension, but you do not want a very obvious demarcation between your natural cheek color and the blush (i.e. think racer stripes!).
6.Sweep a small amount of the lighter shade across your nose and/or forehead as desired to add an extra glow to your complexion.

Tips:

1.Don't forget to blend. The first couple of times I tried this, I ended up with a stripe of dark blush over the light blush!
2.Check out your handiwork in different types of lighting. Natural light is best to make sure you've blended sufficiently and that the colors are complimentary.
3.Make sure you can return your blush if it ends up looking too harsh when you try this trick. Many chains like CVS allow beauty products to be returned.
4.Don't apply your blush with a heavy hand; less is more.
5.When choosing your shade, think of what color your cheeks are right after you've exercises -- that's your natural blush.