Start with the moments that tell the story
Bring a main clip and the separate reaction, facecam or demonstration inset. Pick the takes that make the subject clear, including a strong opening and a complete ending. These choices give Shorty a useful starting point for the edit.
Give Shorty the creative direction
Keep the main action dominant and place the inset where it does not hide important details.
Try a 20-second 9:16 edit as a starting point. Include the exact title or closing message you want on screen. Add a reference when you want to show the pace, captions or mood.
Try this editing prompt
Create a 20-second 9:16 video from my a main clip and the separate reaction, facecam or demonstration inset. Keep the main action dominant and place the inset where it does not hide important details. Use my supplied wording for titles. Check synchronization and the inset position throughout the sequence.
Make the next version more specific
Check synchronization and the inset position throughout the sequence.
Play the first cut and pick the change that would help the story most. Name the moment, describe the result you want and tell Shorty what to keep. A note such as “hold the final product shot longer” gives the revision a clear direction.