it was a really academic personal statement - i had only a paragraph on hobbies/interests/extracurriculars. i looked at the course modules and spoke about which ones interested me and my experiences related to them. e.g i helped to organise a national conference centralising on AI, which led me to complete a course in……, and then refer to the specific modules at imperial and explain further. i would recommend to try attend conferences and talks to do w med tech, engineering, anything you’re interested in associated with the course. if you’ve been part of any uni committees too. i mentioned a coding course called Harvard CS50 - really recommend! and then any research projects you’ve done, publications and presentations (dw if you haven’t, i hadn’t done any proper research or presentations - just mentioned my SSCs which happened to be about AI).