Flirting
I watched these two high school kids (in school uniforms) flirting outside Shin-nakano Subway Station around 5:30 p.m. today. It was like living in the pages of a human development textbook, or watching a documentary about animal mating habits.
First the evasion, then the approach, then the touch, followed by the evasion again, like a mating dance. Well, not "like" a mating dance. It WAS a mating dance. Evade-approach-touch-evade. Evade-approach-touch-evade. Evade-approach-touch-evade. Very cute.
Finally, the two both looked at their iPhones, high-fived each other, and the girl hopped on her bicycle while the boy skipped down the stairs of the station entrance.
They looked like 3rd year senior high schoolers, about 17-18 years old. At their age I imagine their skin is positively tingling with excitement from scalp to feet to be in such close proximity and to touch occasionally, even if the touching looks like violence more than caressing.