Standing up and shouting how wildly successful you does not make people impressed. It instead makes you look like an idiot. Rubbing your success in people’s faces in a way that is a bit more subtle is much more effective. No one will care how big or powerful or rich or high up on the food chain you are if they simply can’t stand you. If you make a good impression from the get-go, on the other hand, people will not only be swooning over your successes, they will be chomping at the bit for you to tell them more.