Look somebody in the eye/face - Idioms by The Free Dictionary
look somebody in the eye/face
look someone in the face and look someone in the eye; stare someone in the face
Fig. to face someone directly. (Facing someone this way is a sign of sincerity.) I don't believe you. Look me in the eye and say that, She looked him in the face and said she never wanted to see him again.
(be unable to) look somebody in the ˈeye(s)/ˈface (be unable to) look at somebody directly (because you feel embarrassed, ashamed, etc.): I knew he was lying because he wouldn’t look me in the eye when he spoke.