In the video, a person is seen using a stencil to apply a blue substance onto an orange fabric. The person uses a tool to spread the substance evenly across the stencil, which is placed on the fabric. The person repeats the process several times, applying the substance in different areas of the fabric. The video provides a close-up view of the person's hands and the fabric, allowing viewers to see the details of the stencil and the application process.