[If Armin notices, he doesn't show it - perhaps he simply chalks it up as a reaction to being kidnapped to another world. A lot of things would be forgivable, under the circumstances - and even obeying social etiquette is more than many people manage.]

Since you were still stuck in the bubble, does that mean nobody's told you anything about where we are or what we're doing here yet?

[In other words, does he have to give you the whole introduction?]