Participants gave higher ratings to both men and women when looking at groups of people. If you’re surrounded by attractive people, you will look more attractive. (That’s why we always hang out with our army of Brad Pitt clones.) Of course, this method won’t work all the time, because you’re eventually going to want to have some alone time with potential dates. Still, if you’re hoping to take a great picture or impress some people you’ll never see again, groups are the way to go.