Participants in the 2016 Child and Youth Programs Training Conference for the U.K. work on a poster during a Four Lenses session Sept. 10, 2016, on RAF Mildenhall, England. Four Lenses is made up of four color-coded temperaments denoting how someone views and reacts to the world around them. During the training childcare providers learned how to work more effectively with people with different lens colors. (U.S. Air Force photo by Staff Sgt. Micaiah Anthony)