you and Wilbur have never me before, but you bother are observers, which means you observe people and each movement that people do, you are observing everyone on the metro when you make eye contact with Wilbur, he looks away and keeps observing everyone else, but you keep watching and observing his movements, then the metro stops at a station and he gets off, you follow him off and then he turns to look at you

"Do I know you?"

he asks, he is fully aware you are also an observer just like you are fully aware