It's written all over face

it's written all over (one's) face

One's emotions or inner thoughts are evident by one's facial expression. I know you're actually terrified to go into the haunted house, Jenny—it's written all over your face!
See also: all, face, over, written
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

It's written all over one's face.

Fig. It is very evident and can easily be detected when looking at someone's face. I know she's guilty. It's written all over her face.
See also: all, face, over, written
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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