Blind Confidence or Skeptical Charisma: Which Attitude Works in the Business World?

I've been working in the corporate business place for quite some time now. Let's see, I just turned 25 and have had this really, really high paying job since my junior year at business school (I had a paid internship and then moved up the ladder), so I guess that's about five solid years of experience. I'm not saying I'm a millionaire, though it's definitely close, and I'm definitely not claiming to be an expert in grabbing success in the business world. Hell, it just came to me naturally, what can I say? But for all of you who are struggling, just trying to make a good go at it as you try to improve your lifestyle, I've got some important news: I can help you get into a higher tax bracket. I can help you get that dream business job that you've always, er, dreamt about. You ever wake up in the middle of the night and scream, "I don't want to be a dreamer anymore, I want to do, do, do!" You have? Well, you're not alone. There are thousands of people just like you; normal folk just wandering through life, thinking about ways to get ahead. Well, what if I were to tell you that your attitude, that your personality is the most important factor when it comes down to landing a sweet job in the business world. Would that be something you might be interested in hearing more about? I thought so. Let's begin.

Basically, there are two types of people in this world. Scientists break it down like this: extraverts and introverts. Where do you belong? Which one of these is the best attitude in the business place? Is it all really this simple?