face to face

• 当面扯谎

  lie to someone's face

• 当面责备

  reproach someone to his face

• 当面对货

  exchange goods in person

• 当面交给他

  give to him in person

• 当面一套，背后一套

  be two-faced

• 当面不说，背后乱说

  gossip behind people's backs but say nothing to their faces

• 有话要当面讲。

  If you have something to say then say it in public.