No, voyeurism is certainly not an American trait, and it's definitely not one Elizabeth possesses. The second he starts to look human (and naked), Elizabeth makes a strange, uncertain sound and turns her back.

...oh God is he coming back to his clothes? Oh God. Of course he's coming back for his clothes, where else would he go?!

"I-- uh, wait, hold on--" Slowly, she lowers herself down, back still to him, and reaches behind herself to awkwardly pat at his clothes, looking for the glasses. Finally she finds them under a... shirt?-- and holds them out with her head turned the other way.

"No, I should be sorry, I shouldn't have talked to you like that, that was... incredibly demeaning, I honestly thought you were a dog."