"Very few people need to apply a full face of foundation—unless you're
going to be on camera or it's your wedding day," says Ramy Gafni, a New York
makeup artist. But if you do choose to wear it, the best way to find the right
color is to swipe a bit of foundation on your jawline. In natural light, the
color should disappear. Dot it on your forehead, nose, cheeks and chin, and
blend with your fingers or a clean sponge.