Hints:

It worked, Owl, no more, hic... Oh!
Maybe you didn't hold your breath long enough. This always works.
What did you, hic... do that for?
I was trying to get rid of your hiccups.
Go ahead, you try it on me.
Come on.
See? But you never had them, hic... ...
Oh my! Someone is at the door. Hmm, I wonder who it could be.