You don’t show up to the parent-teacher-student conference and admit to taking your essays straight from the Internet. And you’re not likely to raise your hand in class and tell people what websites you’ve been on recently.

If you have a secret to tell your friend, you’re hardly going to advertise it on flyers in the cafeteria. And if you’re chatting with your girlfriend in your room, you don’t ask your visiting aunt to come and join you.

Maybe you’d rather keep things to yourself…

But then you aren’t always as anonymous as you think.