A: You won't look like you're going clubbing if you choose a sheer shade and limit the frost to a simple accent. Try it as a narrow liner ringing the eye, suggests Bobbi Brown, founder of Bobbi Brown Essentials. Or sweep it over the lid in a neutral hue that blends with your skin. "Gunmetal is a great, dressy color for a wedding," says the beauty maven, "but skip the browns—they're far too ordinary." To make sure you get the sheerest product, test it on your finger first. P.S.: Don't give cheeks or nails the glitter treatment. Says Brown, "That's overkill."