A good place to flirt while waiting in line, says Sara McCormack Hoffman.Hoffman, who teachers a class on the joy of flirting at the Open University of Minneapolis, says there are better and worse places to flirt. Another good place is in a store or shop, where you can talk about merchandise. Hoffman says the worst places include bars, where there are high-pressure situations with loud music and alcohol, and the things you say may go unheard or unremembered