The interviewers would like to learn more about you as a person. While you cannot share everything about your personal life and accomplishments on your CV, there must be something you are proud of that you would like to share. If possible, share something about yourself that shows the interviewers you would be a good fit for the residency program. For example, if you share that you compete in bodybuilding competitions, the interviewers will see that you are dedicated and diligent, both essential qualities for residents to possess.