During the holidays, many of of us opt to get our makeup done professionally for the slew of festive parties on our calendars. That’s why we decided to poll the pros about exactly what they wish clients would and wouldn’t do when sitting in the makeup chair. What makes their job easier? What can ruin a good application? If you plan on getting dolled up by a makeup artist anytime soon, keep reading for expert advice on how to make the most of your professional application, including tips from First Lady Michelle Obama’s personal makeup artist, Carl Ray.