A sly, self-satisfied half-smile that reads as confidence, suggestive flirting, or knowing something others don't — think 'I have a plan' or 'I know exactly what I'm doing.' Its asymmetric mouth is one of the more technically difficult emoji designs to render consistently, so its 'smugness' varies noticeably between platforms.
Keywords: boss, dapper, face, flirt, homie, kidding, leer, shade, slick, sly, smirk, smug, snicker, suave, suspicious, swag