[It's one way that works. Some of the kernels of popcorn scatter on the floor, and it takes him just a moment to catch his balance.]

Whoa! [Then he adjusts his mustache and continues his disguise-y voice.] Sounds like we got a tremor! Haven't felt one like that around here in oh, five hundred or so years, back when I was a whippersnapper!

[It doesn't take him long to spot the source. He saunters on over towards her, with a cheeky grin, and he still keeps up his disguise voice as he leans towards her.]

Hello there, young'n! What brings you to the bending arena at this time of day?