Why this word is great
OSTENTATOR — [Noun] A person who behaves in a showy or boastful manner to attract attention or admiration. From the Latin ostentātor, meaning "one who shows off" or "boaster", from ostentāre ("to display, show off"), frequentative of ostendere ("to show, present"). Unlike a braggart, whose sin is vocal and self-referential, or a grandstander, whose performance is calibrated for a specific gallery, the ostentator operates through a silent, material theater of display—the wristwatch turned to catch the light, the conspicuously dog-eared pages of a fashionable novel, the careful placement of an empty champagne flute as a relic. Every gesture is a display case for a self that feels, even to its owner, perilously interior; they build a cage of appearances, then patiently wait for you to notice they are inside it.