Ask questions and build on the answers.
This principle relates to the agenda to hunt the wild story.
Constantly ask questions of the other players’ characters — about the things they see, hear, smell, taste, and touch, about their feelings and perspectives, about their hopes and fears, about their past, about anything and everything about them that catches your attention. The answers remain uncertain until someone spends a moment of awareness to ask more formal questions that tell us for certain that the story went down one path and not the other, but these impressions provide the hints and signs that help us do that. Add what you see to their answers and build on them. When those answers pique your curiosity, pursue them in play.