It’s advice that’s tossed around quite often: Fake it ’til you make it. On the surface, it sounds harmless. Put on a confident façade as you learn your way around—and eventually, you won’t have to fake it anymore. But is it advice that you can effectively use in your career? Not always. After being put in a number of professional situations in which I had no idea what I was doing, I’ve determined a simple rule for determining when it’s beneficial to fake it—and when it’s best to admit your weakness. Read more.