So I was day-dreaming as usual, and stumbled across a fight between Takanuva and SCP-173. For those of you who don't know, SCP-173 is basically a monster which can only move when not seen, like the Weeping Angels from Doctor Who. Naturally, this prompted the question of whether Bionicles need to blink or not? My head-canon behind Bionicle eyes is that they look like the sets, and are basically made of glass covering some biological eye stuff and a coloured light. This design makes me think they do not need to blink. However, I have feeling there might be evidence of characters blinking or winking, suggesting that they do have some sort of eyelid. Does anyone have any evidence to solve this problem of cataclysmic importance?