A young model in a light blue shirt stands beside a whiteboard in a bright classroom, looking at her students off to the left of the frame. She says in a clear, encouraging voice: "Today we are learning one simple trick that makes everything else much easier." LOOK: realistic vertical video, medium close-up framed from the chest up, her face large and clearly in three-quarter view, soft natural light, realistic skin texture. Her lips match the words exactly. She never looks at the camera, she is unaware of it; her eyes stay on the person or thing she is talking to off to the side of the frame. Sound: only her voice speaking that one line, clear and close, a warm natural young American model's voice, then she stops talking. No background music. No text, no captions, no subtitles, no logos anywhere.