2. Make a soft GM move

The situation is clear? Good. Now, make a soft GM move—say something to provoke action and/or increase tension. Pick one of your GM moves and do that.

To provoke action: say that something bad is about to happen, or is in the process of happening, but give the PCs a chance to do something about it. "As your hand finds your knife-hilt, the crinwin is like 'hiissssss' and leaps, fingers going for your throat, what do you do?"

You can also provoke action by offering them an opportunity, or by presenting options and prompting them to pick. "Okay, it tumbled past you. It's surprised and you've got a moment. You could jump on its back and try to stab it. Or get out of there. What do you do?"

In a social scene, your NPCs might ask for something or demand something. They might say something vulnerable or emotional and then look at the PC, expecting them to react.

Soft moves don't always provoke action. Sometimes, they just crank up the tension. You might use up their stuff, foreshadow trouble, or add trouble to a scene in a way that can't be acted on right away. "You've been down here for a while, your torches are starting to get low." Or "There's another tremor. A bit of dirt falls from the ceiling. What do you do?"