>>2328138The distinction doesn't come from how someone acts in a given situation, because that's just the product of circumstances. Everyone is going to try and pretend to be an extrovert at an interview or big corporate party because circumstances dictate that you act that way. Rather, what truly separates an introvert from an extrovert is what you prefer to do in your free time when the only factor involved is your personal agency. Generally speaking
>ExtrovertDerives the most enjoyment from doing things with others
>IntrovertDerives the most enjoyment from doing things by herself
Note that being an extrovert doesn't mean that you dislike doing things by yourself and being an introvert doesn't mean that you don't like doing things with others; what it means is that when given a fair choice you have a preference towards one or the other. Also, contrary to what some people believe, being an otaku or idol/entertainer has no direct bearing on whether you are an extrovert or introvert. The classic example of an extroverted otaku would be a girl who cosplays twice a year at Comiket without fail and whose room is covered wall-to-wall in character merchandise, and an IRL example of an incredibly successful entertainer who was also a massive introvert is Greta Garbo, the silent film era movie star. Once she had made enough money to never need to work again, she channeled her inner Pekora and spent the rest of her life as a literal recluse.