Please discuss how the cameraman decides which shots to take when shooting in groups on the spot.

If the filming (including film and television shooting) of the crew is written by the director (storyboard), the director will clearly tell the camera how to shoot all the shots, the position of the shots and so on. If the program is recorded or broadcast live, it mainly depends on the deployment of the director, the experience of the cameraman and the distraction of the scene characters. If you are a photographer, you should make a composition first, and then take pictures or something. My answer is not very professional. Looking forward to a more professional answer.