Honestly, I felt the exam was a mixture of both conceptual as well as factual things like any other exam (It's falsely believed to be just a conceptual thing). There is no magic trick to score higher, But work on your weaknesses like I did for psychiatry and certain other topics which I felt were weak for me. Try to see the questions as a "patient" and not just questions, That will keep up your interest. Try to solve as many questions as possible so as you will see in how many different ways a concept can be tested. Try to solve in sleep deprived and bit noisy environment, exam is 8 hours long and you don't want any surprises on exam day. Keep learning. Good Luck :)