<p>The rater’s traits were recorded in the computer program. Then, the four faces of the same virtual woman were presented, depending on the rater’s own traits (see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0049791#pone-0049791-g002" target="_blank">figure 2</a>). An example for a rater with light eyes, no chin dimple, dark hair, thick eyebrows and thin lips.</p