This has happened to me several times in person. I've also been told second hand by friends that others have come to them thinking I'm FTM but without top surgery.

I'm transitioning MTF.

I guess I pass as FTM. I don't understand how this keeps happening.

Portal 2 - Cave Johnson's Lemon Rant

All quotes from Portal 2's "Space" sphere

Turret Opera / Cara Mia (Portal 2) - A Cappella