Scenes are made of characters. Identify the wants of each character. Your character wants something so much he or she is willing to do anything to get it. What the character wants is not necessarily what the character says he or she wants. Yet this attraction, this want, is at the root of his behavior.
Narrative writing can be lengthy and expository, dramatic writing tends to be brief and visual.
Narrative writing uses the voice of a narrator to lead us into backstory and setting the story line. In dramatic writing, it has to happen before our eyes. You have two characters. Each want something. They are going to engage in a confrontation.