A related "power" I've found in the past is being willing to say "I don't know". Fundamentally I work as a consultant. It's my job to solve other people's prob

A related "power" I've found in the past is being willing to say "I don't know". Fundamentally I work as a consultant. It's my job to solve other people's problems, which we usually (but not always) do by building something for them. Often our clients deal with a lot of consultants of different forms - they use consultants because they have specific skills and knowledge in different areas. Unfortunately this means that everyone is always trying to sounds as smart as possible and never admits to not knowing something. For the client they then don't know if they're getting "this is something that I know from doing 100 times" from "I'd guess this is the answer". I've found that answering the occasional question with "I don't know (but I'll find out and get back to you)" changes people's opinion of me (and my company) for the positive. They suddenly (usually subconsciously) have greater trust of what we're telling them, because they know we'd admit if we didn't know.