Call it a game, call it a writing discussion. It falls somewhere in between.
Here's an example: You know you're a writer when the death of a major character in your book is both emotionally traumatizing and motivationaly stimulating.
Got any more? How many can we get? How many can we relate to?
((Act 2 of Mockingjay.))
You see difficult tasks in life as epic battles with monsters, cool armor, and lengthy grand speeches.
You know you're a writer when you declare that you will avenge you sleepess night in the hospital by writing the bed and its tortures into a story.
I am doing this by the way.
You still see yourself as the persona you crafted and live adventures as you slay your homeworks. You dream of the lands you navigated in your mind as they mature with you, losing some color and several characters.
When you start narrating your life in third person...aloud *facedesks*