apply directly to the apples of the cheeks, in a circular shape. This softens angular features by drawing attention to the roundest part of the face. You'll find your 'apples' by fake (or real) smiling into the mirror!
This best suits square faces.
Cheek Bones: defines
Concentrate your blush on the top of your cheekbones, lightly blending up and back towards your ears. This will give your cheekbones serious definition, and reinforce the face's angles.
Best suits oval, diamond, heart and long face shapes.