What's the best way to translate 'fufu' and the 'mufufu's on the following pages? I know they tend not to be translated as straight romaji. A simple 'hehe' would work for the 'fufu's, but I don't know how to deal with the 'mufufu's in a way that would keep it consistent. I'll leave those untranslated until someone more-experienced with this kind of thing could tell me a good way to handle it.