In real life, you can walk around living life and be visible to other people. But you can’t just walk around and be visible on the internet—for anyone to see you, you have to act. You have to communicate in order to maintain an internet presence. And, because the internet’s central platforms are built around personal profiles, it can seem—first at

Personality insights: Simply moving through a connected world and participating in social media, we tell a lot about ourselves and our opinions, interests, and problems.