I've received some conflicting advice about this. I thought you should allow the interviewer to lead the interview, but I've recently received advice that you should also try to make it like a conversation.
For instance: interviewer asks you why you want to do medicine. Instead of just answering, you ask the interviewer about why they got interested in medicine.
So is that right? Am I suppose to lead the conversation at times, or just answer the questions and talk about myself as much as possible?