From: External Appearance Is A Cover
-- 1 Wipe that smile off your face.
-- 2 Put on a happy face.
-- 3 He wore an expression of utter sadness
-- 4 His guilt was written all over his face.
-- 5 His look of amusement was slipping from his face.
-- 6 A grimace materialized for no apparent reason, but it meltedaway before she arrived.
-- 7 The disquiteting expression was lifted from her face.
-- 8 It seemed as though a perpetual grin was sewn to his lips.
-- 9 A shadow fell across her brow. (= she looked troubled)