One of the fundamental differences between extroverts and introverts, in the workplace, is that while introverts think inside their heads, extroverts think out loud. So, while extroverts are talking, they can be working hard to sift through their ideas, to form their opinions and to clarify their thinking. However, the amount of talking involved, and the lack of initial clarity, may annoy other people. What a contrast with introverts who might think quietly to themselves and may leave us feeling frustrated because we don't know what they are thinking. And all the talking that makes the extrovert feel energized, stimulated, and enthusiastic, is draining for introverts. Introverts can also feel that extroverts are wasting their time and feel frustrated, an emotional reaction that may be unhelpful in building a productive working relationship. Extroverts in thinking out loud, may leave people feeling that they cannot be trusted, because they may say things that are only an initial idea that they may quickly be revised.