WMG says Blake's a faunus. Not too sure about that though, though I'm fairly certain Adam is related to the Grimm on account of that mask. I figured if Blake was a faunus, we'dve gotten some hints by now.

Biggest piece of evidence so far has been a momentary twitch from her bow. So naturally, most fans believe this seals the deal.

71TheRoman said:

Biggest piece of evidence so far has been a momentary twitch from her bow. So naturally, most fans believe this seals the deal.

her bow twitched on two separate occasions. That's a little too much for a simple gag.

At the same time, it's only happened twice, and more or less in the same scene. I'd almost be willing to chalk that up to an animation error or gag. If she turns out to be a faunus, I think we'll find out in this Arc. This Arc seems to be focusing on them a bit more, what with Velvet and that history lecture. My money says Velvet turns out to be White Fang mole in a later arc.

I'd rather we sum it up to the bow just being an expressive accessory and leave it at that until Blake being a faunus is explicitly shown.