Habits and customs are the earliest,the most popular one kind of social norms,is the people of all ethnic groups in the long-term historical development process followed the long product and the formation of a way of life,mainly in food,clothing,housing,festivals,etiquette,marriage,funeral and other aspects,and is not a law,therefore not legally binding code of conduct,which mainly through imitation into people's habits of behavior.As the saying goes:"hundred different tone,in ten different customs",refers to the regional customs vary greatly,and keen observation and cross cultural exchanges do in Rome as Rome does.Is an important ring in the.Generally speaking,habits and customs are the social norms can easily be adapted to the level of the.Exchange both sides know each other custom differences,friction and conflict are easy to avoid,heart is also relatively easy to adapt.Habits and customs are the unwritten,customs and habits of conflicting results is to hurt the feelings of the exchange national.