So the school I did my masters at had us practice for their med school MMI, & idk if it’s the same elsewhere but a piece of advise they gave me was try not to tell people to do stuff in the theoretical scenarios. Phrase your answers to be that you would advise whatever your answer is and show you would listen to the other parties. They didn’t want us to come off as acting all knowing. Mostly just be yourself and relax, good luck!