formality

Teacup formality is a part of etiquette, but an infinitesimal part. How about fast-food informality? That is as much a part of etiquette as the teacup. It is all of our behavior and not simply the formal occasion behavior. And, in fact, the more informal the circumstances, usually the more you need etiquette.

Judith Martin (b. 1938) American author, journalist, etiquette expert [a.k.a. Miss Manners]
“Polite Company,” interview by Hara Estroff Marano, Psychology Today (1998-03)
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Moving parts in rubbing contact require lubrication to avoid excessive wear. Honorifics and formal politeness provide lubrication where people rub together. Often the very young, the untraveled, the naive, the unsophisticated deplore these formalities as “empty,” “meaningless,” or “dishonest,” and scorn to use them. No matter how “pure” their motives, they thereby throw sand into machinery that does not work too well at best.

Robert A. Heinlein (1907-1988) American writer
Time Enough for Love, “Notebooks of Lazarus Long” (1973)

In statesmanship get the formalities right, never mind about the moralities.

Mark Twain (1835-1910) American writer [pseud. of Samuel Clemens]
Following the Equator, ch. 65, Epigraph (1897)

BRUTUS: When love begins to sicken and decay
It useth an enforcèd ceremony.

Shakespeare
William Shakespeare (1564-1616) English dramatist and poet
Julius Caesar, Act 4, sc. 2, l. 23ff (4.2.23-24) (1599)
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