But if Crake wanted her to stay longer on any given night, do it again maybe, she'd make some excuse—jet lag, a headache, something plausible. Her inventions were seamless, she was the best poker-faced liar in the world, so there would be a kiss goodbye for stupid Crake, a smile, a wave, a closed door, and the next minute there she would be, with Jimmy.
Margaret Atwood, Oryx and Crake
character