Step 3: Build On The Fiction
As the scene develops, the players find opportunities to take action—problems to solve, obstacles to overcome, mysteries to investigate, and so on. The players describe how their characters proceed; if their proposed actions carry no chance of failure (or if failure would be boring), they automatically succeed. But if the outcome of their action is unknown, the GM calls for an action roll. Either way, the table works the outcome into the story and moves the fiction forward, narrating how the PC's actions have changed things.