Robin is physically male, for what it's worth to a confused alien. Mentally is another story entirely, but as far as she lets anyone know, she is male. She's a scrawny and kind of short with some impressive stitches holding her face together.

For a moment she just stands there and stares at the girl on the floor, not really knowing what to make of the grey skin and orange... protuberances.

Then she clears her throat. "U-uhm..." Her eyes finally dart around to the room, very confused. "Maybe the note says something?"