#1. Spy a generalized course that will take you across an empty, and appearingly-clean, athletic field*.
* Your course doesn't have to be an athletic field, but the game seems to create more of a personal challenge if you can view the majority of the course from where you are starting.
#2. Predict, before you start venturing your course, how many pieces of litter you will end up collecting.
#3. Venture your course, taking a mental count every time you "net" a piece of litter. (A scientist would record the number of pieces picked up; this game allows for mental notes!)
#4. When you get to the end of your course, determine if you underestimated your prediction, overestimate or were right on your prediction!
>That is one of 2 endings to this game<
ENDING #2: Look back at the field/course you ventured. Thinking about what "litter" you just picked up along that course (did you find waterbottle caps? Hair ties? Band-Aids???) , can you get your mind to think of what has been happening on that field to create the litter you found? Play that game in your head. If you are with friends/family, tell them what your mind came up with...it if is appropriate to do so : 
EXTRA CREDIT: Remembering how close you were to your prediction, repeat the game on another section of that field, or on another field or on another day. Are your results getting closer to your predictions? Ask yourself why you might be getting more/less accurate on your predictions.
(maybe your questions might be something to put in the Community Forum part of this website -which I have yet to edit and fill with content!!!)