mien

1. N-SING Someone's mien is their general appearance and manner, especially the expression on their face, which shows what they are feeling or thinking. 仪表; 举止; 神态; 面部表情[文学性] [usu poss N]

It was impossible to tell from his mien whether he was offended. 从他的面部表情无法判断他是否生气了。

...his mild manner and aristocratic mien. ...他温和的举止和高贵的仪态。