The aim of the game is to write a story following a sequence of steps, while setting specific emotions and sentiment.
In the banner at the top, you can see the next step of the story to write, and alongside it the target emotion and sentiment are displayed.
The target emotion and sentiment should be reached by the time you get to the next step of the story, so you don't have to immediately write the next step. Take time to set the emotion and sentiment.
Watson analyzes the emotion, sentiment and whether you have reached the next step at the end of every sentence. Your current emotion and sentiment are displayed just below your story.
Your score is shown in the top right of the screen. You get points for reaching the next step, and more for having the right emotion and sentiment when you get there.