But in reality, few of us fit neatly into either of these personality types. And for those of us who are truly in the middle of the introversion/extraversion spectrum, there's a name, too. Psychologists refer to such people as ambiverts, meaning that we express qualities and behaviors of both introverts and extraverts, depending on the situation.
http://www.huffingtonpost.com/2014/11/24/both-introvert-and-extravert-ambivert_n_6177854.html?ir=Healthy%20Living&utm_campaign=112414&utm_medium=email&utm_source=Alert-healthy-living&utm_content=Photo