The image shows a close-up of a yellow sign on the side of a train. The sign reads "See something? Say something." The sign is written in black text and is located on the right side of the window of the train. Through the window, we can see the interior of a subway train with blue lights. The train appears to be in motion, as there is a person visible through the window. The background is blurred, but it seems like the train is moving at a high speed.