[ Sebastian notices the care that the young man takes when moving, though it's only quietly noted as he starts to get a sense of the sort of person this young man is. Small behaviors and gestures say just as much to him as a conversation, and considering his line of "work"... Well. He's rather attuned to pick up on such details. ]

An android...

[ He trails off thoughtfully, but it's clear from his tone he's not familiar with the term. He can make his guesses just based on the probable roots of the word as well as how 9S uses it, but it's only a guess. Considering the disparities in eras, it's at least fine for him to be honest, so he shakes his head. ]

My apologies, but I am not familiar with the term. If I were to guess, it is because I am from a bit of an earlier time than most. 1889 in England, to be specific.