Some professors might recoil at the idea of looking at their students’ dating app profiles. Not Gurit Birnbaum, a professor of psychology at Reichman University. She saw it as an opportunity.  Some of the young people in Birnbaum’s classes, as well as close friends, asked for her advice and turned their phones over to her. After poring over their bios and photos, she had some opinions.  What stood out were a few commonalities in how they presented themselves to potential partners: “Some profiles revealed almost nothing, others revealed too much. Some relied heavily on sexualized ima...