[quote=Themerlinhawk]in theory all that will happen is Lazarus wont pick anything up from the being since he doesn't actually know what they are thinking it's closer to reading body language than anything else. 
[/quote]

So, its like he gets vague intentions rather than thoughts. Like, if a demon was going to attack, he'd know it was going to do that, but not who the demon was going to attack or where the demon is (unless they're just staring each other down, in a duel, all alone).