Animate only the gray-haired man standing in the center of the group. He naturally raises one han...

Animate only the gray-haired man standing in the center of the group. He naturally raises one hand and gives a clear thumbs-up ("great!" gesture) with a warm, friendly smile, then keeps the thumb raised. His body position, face, and gaze remain almost unchanged. The other four men remain completely still in their original poses, without any movement, head turns, facial expression changes, or gestures. Preserve the exact facial features, identity, clothing, proportions, and positions of every person. No one looks at the camera differently, no camera movement, no zoom, no body shifting. The motion should be subtle, realistic, and last 3–5 seconds, as if it were a real video made from the original photograph.