Artemis might not have heard the nurse, but Haku picked up the sounds and signs right as she got to their door. Thanking Zabuza-san's training to hone his hearing and observational skills, Haku pulled away, smiling at Artemis and reaching up to run a thumb along his friend's lips, taking advantage of the situation to disengage his hand from the other.

Both hands folded in his lap and he glanced towards the door, annoyed at the inturruption, but not showing it.