Jonathan Iglesias and Kateri Demartino in Miss Abigail's Guide to Dating, Mating, & MarriageWednesday evening's audience clearly had a lot of fun watching and interacting with the Circa '21 Dinner Playhouse's Miss Abigail's Guide to Dating, Mating, & Marriage. In truth, the performance would not have been quite as much fun if there were more watching and less interacting.  While there are plenty of laughs to be had as the titular character in this PG-13-style comedy offers advice on flirting, relationships, and sex, there are also a few missteps made along the way.