Don’t get overly comfortable with the people you are forced to share spaces with, maintain a level distance and mystery about yourself around them. At work, school, or any other communal place, don’t overshare and get too cozy with people. Remain professional and adopt a specific character while you’re in those places. By not letting others get too comfortable around you you are protecting your most vulnerable side and others won’t know where to attack you from, don’t let others think they know you. You only see people’s faces, you don’t know their hearts and what their true colors are. Self-preservation is key not just for success but for basic survival.