Would know if you were not. Would remember your face. [She tilts her head in open confusion when he seems to be trying to hide his face-- and tell her to ignore him?? Excuse???]

Ehhh? You do not call out to someone, then tell them to leave you alone, stupid! [She moves forward and grumbles at the swamp some more, before turning her gaze up to him again]

If was busy, would not stop to talk. Would not waste time, obviously. [She eyes him some more] Besides, you are not human, yes? Would probably ignore you if you were human. [And she laughs a little, like that's a natural thing to say]