1. You have an insanely overactive imagination.
2. You spend a good portion of your day wondering what it would be like to live in another world or live as another human.
3. You've definitely planned out an alternative career path for yourself at some stage...
4. ...and this alternative path generally involves you being famous and rich and wildly talented.
5. Being seated next to a window is kind of detrimental for your productivity.
6. And people watching is one of your favourite past-times.
Because you tend to make up stories about random people's lives.