Put your face on
Definition 1 of 1
Pro Tip 1/3Figurative Sense
The phrase is not about the actual face, but refers to applying cosmetics to enhance appearance. 
I'll join you for breakfast after I put my face on.
Pro Tip 2/3Informal Use
It's a casual expression, usually not appropriate in formal writing or professional contexts. 
We're late for the movie because she's still putting her face on.
Pro Tip 3/3Gender Neutral
Primarily used by women, but can be used for anyone applying makeup regardless of gender. 
He doesn’t start his drag performance until he’s put his face on.