You really are stuck on stupid. I can't explain it any better than I have and you still completely missed the point of it all.<quoted text>
Like a tickle contest? A pillow fight? Drawing a mustache on someone sleeping? Setting up a "scavenger hunt" for birthday presents? Tossing food at each other?
We do things like that all the time.
I already know all this stuff & can't "learn" it from kids, I teach it TO kids.
Try this for once, go to a park and just watch the kids play. Listen to their laughs, watch their smiles. For about an hour just watch them and think of nothing while you do, you will remember what it was when you were there, when you were playing about on that same playground, remember your laughs, remember the fun you had.