I had mine with a psychologist last month. I was being evaluated for memory and anxiety. I was asked questions and given words to remember then repeat. I am not sure how it went because if you give me 3 words, telling me i am going to be asked them later, i concentrate to remember them with tricks. I told him that. I think it helped that when i was leaving i could not follow directions how to get to the waiting room.
Good luck, just be honest. They see people all the time and will know if you are trying hard to seem like you have problems you do not.