I just got home from my interview- still shaking from nervousness. But I want to give some tips from my experience.
My interview was laid back. I was ready to raddle on about my extra curriculars and my experience at school but it wasnt like that at all. It was more of like a conversation about our shared interest in the school- hacks and all. There is no point to script structured responses to common interview questions, answer them naturally . Come prepared with several questions about the interviewees MIT experience. And most of all, good luck!