In the video, a person is seen applying a liquid substance to a wooden surface using a brush. The person is wearing blue gloves and is standing in a workshop. The wooden surface has a natural grain and knots, and the liquid appears to be a varnish or sealant. The person is moving the brush back and forth, ensuring that the entire surface is covered. The workshop in the background has various tools and equipment, indicating that this may be a woodworking or carpentry project.