Shinnumen is an expression of anger with the arching of the eyebrows and a downturned mouth; Kugejoshutsumen is an expression in which a canine tooth is bared between pressed lips, and Daishomen is an expression of a smile, more specifically a big grin.
瞋怒面は眉を吊り上げ、口を「へ」の字に結んで怒りの表情を表したもの、狗牙上出面は結んだ唇の間から牙を現わすもの、大笑面は大口を開けて笑う表情を表したものである。