In the video, a person is seen pointing to a thermostat and then to a light switch. The person then turns the light switch on and off. The thermostat is located on the wall, and the light switch is also on the wall. The person's hand is visible as they point to the objects. The light switch is turned on, and the light in the room becomes brighter. The thermostat is turned off, and the light in the room becomes dimmer. The person's hand is visible throughout the video, and the actions are clear and deliberate.