"My No. 1 tip for making lips appear full is to use a sheer smear of concealer around the edge of your lips," says Dimmick. You can do this either as a finishing touch to clean up your lip color, making it look more graphic and precise, or at the beginning, before going in with your pencil. "That way, you can define the lips without using a heavy liner," Dimmick says.

Either way, dip a concealer brush in Laura Mercier Secret Camouflage, $34, and lightly sketch around the edge of your lip line for both highlight and definition.