Meta Software Engineer Intern interview questions

The process started out with a pre-screening test which was coding based. There was one question to be done in 60 minutes. The question was fairly simple for me and I completed it quickly. Then, I was called for the onsite interviews a week later. The interview was supposed to last for 45 minutes. Now, in my interview, I was first asked about the best experience I have had in my last two years. Then, the interviewer quickly moved on to the coding questions. There were two questions for which I had to explain my solution and then code it on the whit board. I was able to both the questions, but I guess the interviewer might not have liked the way I had explained my approach as I was not called for the next interview. The interviewer was not very vocal and did not really participate in the discussion where you explain the approach. That is why it becomes difficult to detect if the interviewer is understanding your words or not. Anyways, it was a some experience.