half-smile

A smile, but only one side of your lips curl up. It is used seductively by both guys and girls to look attractive.
From across the room, he gave me a half-smile and winked.
by lettuceboy4life May 28, 2008
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The Michael Half-Smile

Smiling while trying not to smile, then doing it anyways, but not really.
Guy 1- Did you see that guy do the Michael Half-Smile?
Guy 2- yeah man. He looked really confused.
by alleex June 06, 2013
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