YouTube suggested this short to me, and I thought it was a great example of how language includes body language. If we are bilingual, and the languages belong to relatively different cultures, then switching language also means switching body language.
In this case, she gesticulates when she speaks English and becomes far more still when she speaks Japanese, even if she speaks with the same person and in the same setting. She also does the little bow I associate with Japan and their body language. You can see the switch about 38 seconds into the clip.
We are endlessly fascinating creatures.