In this video, a person is seen sitting in a car and adjusting the seat belt. The person pulls the seat belt across their body and clicks it into place. They then proceed to adjust the shoulder part of the seat belt to ensure it is comfortable and secure. The person's arm is visible as they make the adjustments, and the seat belt appears to be black. The car's interior is not visible, but the seat belt buckle and latch are clearly shown. The person's actions are deliberate and careful, indicating a focus on safety and comfort.