Putting on a Mask
Noh masks, like costumes and props, are extremely valuable heirlooms and handed down from generation to generation.
After having the costume put on, the shite then goes to the kagami no ma (mirror room) where in front of a mirror, the shite faces the mask. In putting the mask on, the word kaburu (putting on clothing) is not used. Instead the word kakeru (to hang) or tsukeru (to attach) is used. In this way, it is implying that the performer is “becoming” the mask, and its emotions, in order to better express the characters feelings.
In reality, a noh mask does not entirely cover a noh performer’s face when it is being worn. In fact, it is thought best if some part of the chin and/or jowls show.
Also, as the eye holes of the mask are very small, the field of vision of the performer is very limited when wearing the mask. Consequently the simple design of the stage and the use of hashira (pillars) assists in helping the performer know their location during a performance.
Hitamen
Not all the main performers on stage wear masks in noh. Usually the shite and the tsure wear masks and occasionally there are instances where the ai will as well. The waki as a rule, playing a character who is living in the present, does not wear a mask. This is called hitamen or a “direct mask.”
However, even without wearing a mask, the performer is meant to “make their face a mask.” The performer must inject power and emotion into their performance while not using their face to express. In some genzai noh the shite or tsure do not wear masks.