Mr. Goodman, then. I'm Kanaya, and I suppose nobody will call me Ms. Maryam until I "turn eighteen".

[She raises her hand to shake his in a gesture that is not exactly awkward; her tighter expression, as her lips tuck her fangs underneath them once more, just indicates that she views this cultural ritual much like petting a snake. When it's over she thinks for a moment.]

Is that a common pattern of surnames for men in your world?