What kids see

At a grocery store, I set the milk gallons on the ground, waiting for the conveyor belt to roll forward and bring up space from the bottom. A kid of four or so, lifts the gallon saying thats easy. I admired his strength. He then found a toy baseball and threw it. It landed on the belt. He had many questions for the cashier. when the belt was free, he was going to help me lift the gallons on to the belt. As he moved ahead, he asked me to check if there was another baseball from where he had picked the previous one. His eyes couldnt reach it, but the mischievous must feel the presence of a green lit button on everything.