Technically, the answer is nothing since the Qur'an doesn't divide people into groups based on extroversion/introversion. These are relatively new terms that social scientists use to describe people with certain mental and behavioral qualities; however, the Qur'an does praise certain qualities that introverted people excel in. read more
If you mean introvert as a shy person. A person who is concerned with his/her own thoughts/feelings and minimize contact with other people. I think Quran does say a lot about them. Introverts have these qualities: Avoids small talk; Crave for alone time. Enjoy solitude; Being around a lot of people drains your energy; People describe you as quiet. read more
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