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

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.
See also:
  • be written all over (one's) face
  • be written all over somebody's face
  • be written all over your face
  • at the back of (one's) mind
  • at the back of your mind
  • at (one's) doorstep
  • at doorstep
  • at somebody's expense
  • at someone's expense
  • at (one's) expense