Trying to hide in the underhive... tch, so foolish. XD

So, question: would you rather I roll such things as Awareness, Scrutiny, and 'Do I have a clue what the hell this thing that just appeared is' (AKA certain knowledge rolls) for you all, ask for the rolls, or leave you to ask to make it and thus possibly wander into things blissfully unaware because nobody remembered to check for liars? XD