Now, onto the actual painting of your nails. For a French manicure, you'll need two shades of color: one for the nail, and one for the tip. You can have all sorts of fun with French manicures, but here, we'll keep it classic. Sritapan recommends starting with one thin layer of OPI Natural Nail Base Coat for maximum adhesion. "This one also prevents nails from getting stained or yellow," she adds.