After Rena is done, the Swablu takes the letter carefully in their beak and bobs forward in with what might actually be their best approximation of either a bow or head nod. And off the little bird goes, out the door.

...

.... Shay is out and about far somewhere else until the bird finally appears, which he notices and puts an arm out for them to perch on. "Oh, you have something for me, Ruri?" he inquires while taking the note and ignoring as 'Ruri' uses the opportunity to hop off his arm just so she can perch on his head instead.

And after reading it, Shay outwardly lets out a brief sigh that at least turns into a small smile.