I regularly brush my tongue and roof of my mouth at the advice of the dentist but I've taken to brushing another part of my mouth . . . without toothpaste, that is. Using a clean and dry toothbrush, you can buff your lips by gently brushing them, too. Not only will this remove flaky skin, it also helps smooth the surface. Just like exfoliation primes your face for makeup, removing dead skin from your lips will help lipstick glide on more evenly for a smooth-looking smile.