In the video, a man is sitting in the back seat of a car and demonstrating how to adjust the seat. He starts by pulling the lever on the side of the seat, which causes the seat to move forward. He then pushes the lever back, causing the seat to move backward. The man then demonstrates how to adjust the angle of the seat by pulling the lever on the back of the seat and moving it up or down. Finally, he shows how to adjust the height of the headrest by pulling the lever on the top of the seat. Throughout the video, the man speaks and gestures to explain the process.