Start Late, End Early
Begin At the Latest Possible Moment
Once your reader is into the action, you can write a brief paragraph describing the place where the action happens to ground the reader in the setting. Keep this paragraph brief and then continue on with the action.
Readers are smart. They will catch up with you. The key is to get your reader involved as quickly as you can.
Use Scenes as Building Blocks
Whatever story structure you use, whether it is Aristotle’s three acts or a more modern beat sheet, scenes are the power drivers of your story. Your reader is here now. Keep them turning the pages with immediacy and tension. Start with instant action, not long description. End by leaving a question unanswered. Your readers may not know what drives them forward, but you will.