I always figured it was just human nature, I think it is something like. Interacting with unknown people is slightly stressful, you feel this stress yourself b

I always figured it was just human nature, I think it is something like. Interacting with unknown people is slightly stressful, you feel this stress yourself but it is hard/impossible to see in others(unless they actually are really bad with interaction). so when self diagnosed most people will say they are introverts, or on the introvert side of the graph(they feel this way based on what they see). but when graded externally would be average or extroverted.