Cracking codes

You walk through this world and make my codes change and my tongue tremble and my footprints disappear, because you don't need to be a spy or an informant to know me. All it takes is for you to look me in the eyes, for you to hear me breathe. You don't need to know languages or codes or secret words. All it takes is for you to look at me. And I know all of this sounds made up, words I say to…