
One reason I love the Wikipedia article for “high five” is that it’s one of those entries about an utterly basic aspect of everyday life that reads like it was written by a group of aliens observing human beings: “Its meaning varies with the context of use but can include as a greeting, congratulations, or celebration.”
But the high-five Wikipedia page is among my very favorites not because of its writing, but because of its iconic photos — specifically the ones in the section on the “too slow” variation: