This document discusses how social media has affected how people present themselves and are perceived by others. It notes that first impressions used to be formed through in-person interactions but are now also shaped by social media profiles. Both professional and personal reputations can be impacted by what people post online. The document cautions that recruiters and potential romantic partners may screen people's social media and that what users post could negatively impact how they are viewed. It emphasizes managing online profiles strategically to control how others perceive you.