To record a video on a Nikon D5600, follow these steps:
Turn on the camera by pressing the power button on the top of the camera.
Set the mode dial to "Live View" mode, which is the icon with a camera on the screen.
Press the red "Record" button on the back of the camera to start recording the video.
Press the "Record" button again to stop recording the video.
You can view the recorded video by pressing the "Playback" button on the back of the camera.
To adjust video recording settings such as resolution, frame rate, and mic sensitivity, press the "Menu" button on the back of the camera, navigate to the "Movie Settings" option and select it.
Adjust the desired settings for your video recording and press the "OK" button to save the settings.