Gale waves her off, ready to dismiss any attempts at help, when the title finally filters through. There's a flicker of surprise in his expression

"Princess?" he echoes. "Goodness, I'm fear I'm underdressed for the occasion!"

Here in his new little outfit, staring out the window. He offers her a bow, his best impression of what he thinks is right for the occasion. It's a little overdone.

"Gale of Waterdeep, at your service. You have the right of it, I admit I'm brand new to this fine castle."

Is this... her castle? It would make sense for a princess to live in one, after all!