The first time anyone is invited to lead other people is probably the biggest leadership challenge of their life. No one shows you how to do it. Instead, they expect you to have the general idea (because you work here) and learn the rest on the job. They forget that stepping up to lead colleagues presents some new and immediate challenges. How to speak to them in a way that bridges the gap between friendliness (the way we normally try to get on) and direction. How to talk about the boss, now you are no longer part of the gang. How to talk about the Company, now that you have some kind of obligation to represent it.