看人颜色行事不是一件好事情，因为会影响人的情绪。
板着脸put on a grave expression;
哭丧着脸with grief written all over his face;
拉长脸pull a long face;
脸红脖子粗flush with agitation;
脸气歪了face contorted with fury;
面有难色show signs of reluctance;
面如死灰look deathly pale;
吓得面无人色turn ghastly pale with fright
