When visitors come to the World Expo in Osaka next year, guides for the global event will welcome them with the Japanese customary greeting of a bow.Training began for those wishing to be Expo guides in October, and among the things on the curriculum are the three styles of bowing, a gesture in Japan to show respect, express gratitude or apologize.Guides are taught to tilt their body forward from the waist by around 15 degrees when replying, "Certainly." But when they say, "Please visit us again," they are supposed to bend around 30 degrees from the waist. For an apology, the guides should …READ FULL ARTICLE