Its kinda annoying to get phone calls when hidden since suddenly everyone becomes subconciously aware that you're there. Why not a vibrate option that only alerts the player?
|-||SpaceLatency||1m||'And he gave me Venus.'|
|-||Mephibosheth||1m||!zib eht si sivni@|
|w||Storm||13m||I dabble in the puppeting.|
|j||Fengshui||2s||http://www.amazon.com/dp/B00M0DV5IQ <- My Book|
|j||Johnny||3m||New Code Written Nightly. Not a GM.|
|j||Kwisatz||12h||Definitely not a GM.|
|And 27 more hiding and/or disguised|
I think it's more of a player police themselves kinda deal, unless you're in a small area with no ambient population or anything like that, but that's a given.
Of course, alot of people don't police themselves, hey, sometime I find myself doing weird things too, so I'm not pointing fingers. So yeah, Vibrate.