The Soldier drops to a crouch, slowly, so it's closer to the spirit's level. It commits the sound to memory, to practice later in the hopes that it can repeat it properly without offending the spirit or calling something else entirely.

It resists the urge to say "no one", and instead taps out, Soldier, and then says it out loud, since the spirit did as well, and though it doubts the spirit can say it, it should at least recognize the sound if they're going to be friendly: "Soldier. Or Soldat." Then, because this is really going well so far, it asks an important question, Are you in danger from the world eaters too.