In the video, a person is seen applying mortar to a brick wall using a trowel. The person is wearing a red jacket and black gloves. They are using a metal trowel to spread the mortar on the wall. The brick wall is made up of red bricks with a visible pattern. The person is applying the mortar in a specific pattern to ensure that the bricks are evenly spaced and aligned. The video provides a close-up view of the process, showing the texture of the mortar and the bricks. The person's movements are precise and deliberate, indicating that they are experienced in this task.