Think of what toi use a color highlighter for in textbooks ou word chercher puzzles. toi are making something stand out apart from the rest of the words on the page. With makeup, toi are making something stand out from the rest of your face par highlighting an area. I see this most commonly with cheekbones. This tends to bring the focus plus to the center of the face and give it sort of a 3D look. Highlighters as a rule tend to look shimmery on most people's faces.
