be written all over your face
be written all over (one's) face
Of one's emotions or inner thoughts, to be evident by one's facial expression. Jenny said she wasn't scared before we went into the haunted house, but terror was written all over her face. John said nothing, but his response was written all over his face.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
be (or have something) written all over your faceused to convey that the presence of a particular quality or feeling is clearly revealed by a person's expression. informal
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