Oh my god this one is interesting. When Shadow Sly cannot control his lust for blood and he is in his demon form he howls first, then he either walks around on his feet to hear the target's heart race or on all fours like in this picture. It is really scary when your experiencing that moment where he tries to look for you but his hearing helps out alot. Fucking scary as hell but he's a demon alright. I might make a picture of that.