Talk:Outsider's Mark/@comment-28380995-20160802202750/@comment-16533050-20160802205115

Okay, so rewatching a fight of Daud vs Corvo in the Flooded District, Corvo is able to perceive when Daud uses his powers. The Mark glows.

Now, whether or not others can see this effect is unknown. I would have to say no, those not marked by the Outsider cannot see it (though Whalers and such probably can because of their link).

Non-marked can see when you Blink or do other physical things, but when you activate a passive effect like Dark Vision, and the glow goes off, no one seems to notice.

They perceive the tattoo mark, obviously, but I don't think they can see the glow, the same way no one really sees the Heart.