After that, conceal only where needed, paying special attention to under the eyes in the most hollow part of the eye socket. Use a light, but buildable concealer (bonus if it’s waterproof!) and press the formula into the skin for a more natural effect, advises Bartlett. Phillips’ hack is applying some shadow underneath your eyes: “Drop the undereye eyeshadow pretty low—it opens up your eyes like you wouldn’t believe!” Finish off with a touch of highlighter in your inner corners to reflect light. “Take care to build up the lash line and the root of the lash,” says Bartlett. “This will give the eyes definition and open them up without wearing eyeliner.” Phillips recommends using a buildable mascara, like LashCraft Big Volume Mascara ($14; sephora.com) and adding an additional layer only on the center lashes to further enhance the eye.