noun
coquettish smile; flirtatious smile
A smile intended to charm or attract someone, often with a nuance of calculated seduction. The kanji 媚 carries a connotation of obsequiousness or flattery.
彼女は彼に媚笑を向けた。
She gave him a coquettish smile.
その女優はカメラに向かって媚笑を浮かべた。
The actress flashed a flirtatious smile at the camera.