quirk

s. rareza, cosa extraña, excentricidad, extravagancia, peculiaridad, rasgo, subterfugio; mediacaña

v. girar abruptamente; doblar de pronto

rareza

estría

Ex: Biographers will find many, hitherto undiscovered, traits of character or quirks of career of the famous or notorious emerging out of apparently insignificant or unremarked ephemera.

Ex: He was drumming on his desk with exasperated fingers, his mouth quirked at the corners, as if saying: 'Wriggle out of that!'.

(n.) = peculiaridad, rareza, excentricidad, extravagancia
Ex: Biographers will find many, hitherto undiscovered, traits of character or quirks of career of the famous or notorious emerging out of apparently insignificant or unremarked ephemera.

(v.) = hacer una mueca
Ex: He was drumming on his desk with exasperated fingers, his mouth quirked at the corners, as if saying: 'Wriggle out of that!'.