You squat down to examine the screen. When you touch the screen display frame, the vertical screen and the horizontal keyboard slide smoothly forward on a track out from the recess in the side of the cart, accompanied by a low whirring noise.

When it does this, you notice that there are small words on the smooth dark metal above the display recess. You bend in for a moment to look more closely. This side of the cart also has a few patches to the left and right of the display recess that are different textures or slightly different hues of grey from the main body of the cart.