The One Big Happy cartoon from 1/6, recently up in my comics feed:

Ruthie and Joe are engaged in picking up elements of culture — American commercial culture, to be specific — beginning this particular bit of learning by reproducing material they’ve heard on tv, without much appreciation for what it means.
This is in line with kids’ learning of other bits of culture — song lyrics, joke routines, patterns of swearing and insulting, greeting and leave-taking routines, and much much more. At the same time that kids are picking up new words at a great rate, they are also incorporating those words into ways of performing the verbal bits of social life. (Meanwhile, they’re learning gestures, facial expressions, the physical elements of dances, games, and sports, and the rest of a vast universe of nonverbal behavior, which then has to be coordinated with verbal behavior.)
And much of this has to be picked up “on the fly”, from observing what people around you do, without being explicitly instructed — a fact that guarantees that their first efforts at performing these bits of culture will be decidedly imperfect and will have to be honed by practice.
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