Imagine the scene you want to write.
Instead of starting from the scene’s beginning (if that’s even how you normally start), sit back and identify what Raymond Obstfeld calls the scene’s hot spot.
It’s “the moment that the rest of the scene is built around.” It could be a big reveal or an action taken or a decision made.
When you find it, write it out. Show us the big reveal, the action, the character making the decision.
Now, work backwards in the scene, step by step, to show us how the characters got there.
Next, do the same thing going forwards to show any immediate hotspot consequences.