People who complete tasks when the words or images appear on red backgrounds perform better when they have to remember details, whereas they excel at tasks requiring an imaginative response when the words or images are displayed on blue backgrounds. Olympic athletes who wear red uniforms are more likely to defeat competitors in blue uniforms, and men rate women who wear red as more attractive than those who wear blue. In one study, interior designers created bars decorated primarily in red, yellow, or blue and invited people to choose one to hang out in. More people chose the yellow and red rooms, and these guests were more social and active-and ate more. But, partygoers in the blue room stayed longer.12 Maybe the moral is: Get your prof to give you multiple-choice exams on red paper, essays on blue paper, and then celebrate afterward in a red room!