Ballroom dancing, when done properly, looks effortless and elegant. But when my fiance Nelson and I tried out a few fox-trot steps in preparation for our wedding, we lurched around, stepped on each ...

At 7:30 p.m. on a Monday, Andrej Hacke, an instructor for Princeton Ballroom Dance Club (PBDC), plugs his phone into the speaker of the Group Fitness Room in Dillon Gymnasium. Cha-cha-cha music ...