If you are a part of any organizations, sports teams or clubs, talk about your involvement. Share the role you play and your contribution as well as what you enjoy about it. If you enjoy other activities like writing, hiking or spending time with friends, talk about those too. This question gives the interviewer a chance to get to know you. They are interested in learning about your personality and what motivates you. If any of your outside activities relate to this position, definitely share the skills you have learned and the similarities.