Return your tray. You see Papa and Mama do this every time we ate at McDonald’s or KFC, or whenever there is a tray return station.
This is not just about “being nice”, it shapes our character. How you do one thing, is how you do anything. If you can’t bring yourself to do small things like returning your tray, you probably can’t do greater things!
Just think about this: If Papa works at McDonald’s and eventhough it is my job to collect the trays, will you not want to help me anyway?