If a feeling is written all over your face or is written across your face, it is very obvious to other people from your expression.

For example, relief and gratitude were written all over his face. 

I could just see the pain written across her face. 

He had guilt written all over his face. 

I know you’re lying, Bob – it’s written all over your face.

The young mother could tell the little boy didn’t like his birthday present because it was written all over his face.

Tradução: dá pra ver na cara dele/dela, estava na cara.