INTJ/INTP I help run summer conferences, where I lead small group discussions and moderate. People that I meet there often are surprised when I tell them afte

INTJ/INTP I help run summer conferences, where I lead small group discussions and moderate. People that I meet there often are surprised when I tell them afterwards that I'm an introvert. A lot of being able to moderate discussion and engage people was learned, after some practice, rather than anything particularly innate. So things like selling your idea to people, making presentations, being charming, those are all things that a startup founder needs can be learned with a bit of practice.