BY STEPHANIE GRAYSON If you stop and think about it, #MadMen’s #ZouBisouBisou scene can teach us a lot about marketing. Skeptical? Give me some room here to explain. As Megan Draper’s character says in the scene: “Un, Deux, Trois, Quatre!” For those of you who didn’t catch the season premiere episode, Don Draper’s young wife, Megan Draper, sang the French…