Apply Masking Paper to Wall Edge

What happens here

Begin the masking process by using a masking tool to apply 9-inch wide masking paper, secured with production tape, along the perimeter of the window trim. The tape should create a clean line against the trim, and the paper should extend onto the wall, covering the area that needs protection from overspray. The video implies this step is already mostly complete at the start.

Goal: Start by applying masking paper along the edge of the window trim where it meets the wall, ensuring the paper covers the adjacent wall surface.