The cast members in St. Ambrose University's production of Working offer a somewhat unexpected and altogether delightful sincerity in their portrayals of American workers in various trades. These young actors, after all, presumably don't have much, if any, career experience as full-time masons, receptionists, or prostitutes, among other professions. Yet they handle this musical as though possessing full knowledge of the experiences of the average worker, which, during Wednesday's dress rehearsal, helped me connect with the oftentimes funny, sometimes touching material.