What technique can be used for applying eye shadow for a smoky effect?

The technique of blending darker shades into the crease and outer corner of the eye is essential for achieving a smoky eye effect. This method creates depth and dimension, which are hallmark characteristics of a smoky look. By using darker shades in those specific areas, you draw attention to the eyes and give them a more sultry and dramatic appearance.

In contrast, applying a single shade across the lid lacks the necessary complexity and does not create the layered effect required for a smoky eye. Similarly, blending lighter colors alone would not contribute to the darker, smoky aesthetic; rather, it would produce a more subtle look. Lastly, using a highlighter on the brow bone serves a different purpose: it brightens and lifts the area but does not contribute to the smoky effect itself. Hence, option C is the most effective technique for creating that desired smoky eye appearance.