So many seem to be choosing introvert or extrovert as though everyone is either 100% one or the other. That doesn't seem to be the case in real life.
I took several types of personality tests. They generally give you a score on each category, so it's not really black and white. In one test, they referred to me as a "hub", since I'm in the middle of most of the categories. Sometimes I feel like an Introvert and sometimes and Extrovert. It often depends on who I am with.