Office attire and e-mail misfire. Twitter snafus and dating miscues. Philip Galanes hears an awful lot of WHAT SHOULD I DOs? "I'm pretty sure the woman who swims laps next to me at the Y is peeing in the pool. What should I do?" It started in 2008, when Galanes began the "Social Q's" advice column for the Sunday Styles section of The New York Times . "My boyfriend has an identical twin that I'm strangely hotter for than I am for him. What should I...