I think it would really be up to TGT if an inquiry role is needed to eavesdrop in your case.  If you just happen to be completely undetected and silent in the middle of the room and people are talking not three feet away, it does seem somewhat logical that you'd overhear<em>something</em>.<br/><br/>That's my two cents, anyway.  The system seems fluid enough that different skills could be useful in the same situations.