"Averting Eyes: The opponent avoids looking at the creature’s face, instead looking at its body, watching its shadow, tracking it in a reflective surface, etc. Each round, the opponent has a 50% chance to avoid having to make a saving throw against the gaze attack. The creature with the gaze attack, however, gains concealment against that opponent."
"the creature with the gaze attack....so only that creature. This only helps you half the time though.
Alternatively...
Wearing a Blindfold: The foe cannot see the creature at all (also possible to achieve by turning one's back on the creature or shutting one's eyes). The creature with the gaze attack gains total concealment against the opponent.
This would be all creatures they couldn't see. There's your 50% miss chance against everyone to avoid gaze completely.
(If you turned your back...I wouldn't put it past a creature to move around you to stair you in the face.)
