Quote Originally Posted by Quarian Rex View Post
You are indirectly proving my point. There are ways to fool our ears, but we are so unused to it that it drives us mad! Even something as 'subtle' as a Mental display would draw immediate notice and unwanted attention. Will people guess what's happening when used randomly on the subway? Nope, probably not. Will someone you are trying to manipulate in the long term start noticing patterns? Yes, I think they will. And that could have consequences.
Note that you can hide Psionic Displays with a Concentration check.