In a former ping pong table showroom on a busy street near Belgrade’s bustling central train and bus stations is Ryo Ragland’s coworking space and “anti-café,” Share Square.

Benton Wise ’13 doesn’t look much like a high-school teacher. Standing in front of a small group of students in a light-yet-not-Carolina-blue Duke sweatshirt, eating pizza off a paper plate, with a gentle cowlick sprouting at the crown of his head, the fresh-faced, spirited twenty-five-year-old could be mistaken for a high-school student.