PlasmaPower
I'm watching you nerds
After a year & a half of playing the game, I just noticed that if you continue talking to someone outside as many times as you can, the villager you're speaking to will eventually start wandering around, contemplating things as something is "on their mind".
In the older Animal Crossings, if you did the same thing, they would get annoyed by it and your friendship with them would go down.