The aim of applying rouge is to bring a glow to lusterless cheeks and make them attractive and natural. So, rouge should be so used as to heighten the natural lustre and not to display it by exaggerated use.
Rouge is available in three forms - liquid, cream and cake. Liquid and cream rouge is used after putting on foundation and before the use of powder. Whereas cake rouge is used after the application of powder.
The purpose of applying rouge is to heighten the flush (red or pink glow) of the skin, so it should be applied only on those parts of the face which are naturally flushed.
Apply rouge on the cheek-bones, just below the eyes and towards the end of the eyes. Spread it with your fingers after applying it with a brush.