Keep your mouth shut.

Ochobo. It is a Japanese lady thing. East meets west meets east. Japan adopts hamburger, adapts hamburger wrapper. For women. A hamburger chain in Japan marketed a hamburger wrapper that plays to a Japanese bias for women with demure small mouths kept shut. It is considered rude for a woman to open her mouth widely. Thus the hand covering the mouth when laughing. Wouldn't do to be all suggestive and everything. I suppose this means Julia Roberts cannot be considered beautiful in Japan. Roberts can stick her whole fist in her mouth. I've seen it. This marketing ploy is brilliant. And it works. Sales to female customers increased 213% over the month previous to the introduction of the wrapper.