to (one's) face
To one directly, often quite literally by speaking face to face, as opposed to indirect methods. Hey, if you've got a problem with me, tell me to my face instead of complaining about me to everyone else at work.
to one's face
Openly, directly, as in I do not have the nerve to tell him to his face that he wasn't invited and shouldn't have come . This idiom alludes to a direct confrontation. [Mid-1500s]