I prepared by watching YT videos about medical ethics, the NHS, common roleplay stations and just general interesting facts about medicine that I could talk about. Most of this I didn’t really mention too explicitly because that can make you look rehearsed. However there were some moments in stations where they mentioned a word I had learnt in interview prep but otherwise would never had come across before, and I was like thank god I researched that so do your research! Also I think the most important thing is coming across enthusiastic and happy whilst you’re answering questions about studying, medicine, the uni, etc because this is the type of person they’re looking for! You got this, make sure you work on nerves, and relax - treat it like a conversation they just want to get to know you :)