I am co-located with my team member who reports to me. Near us, inside a room seating about 8 people, are other members from various unrelated teams.
Often there is banter and jokes, that are no different that those that happen in many workplaces. Some jokes are made at my expense but I have no issues with those.
I find, however, that my team-member is unable to differentiate work from play and of late, is treating me as more of a colleague than supervisor and has begun admonishing me when I make any work-related suggestions or advice.
How can this situation be improved please?