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        "Culture shock" occurs as a result of lack of understanding in a new culture. It happens to people who have been suddenly "transplanted abroad". Newcomers may be anxious because they do not speak the language, know the customs, or understand people’s behavior in daily life. The visitor finds that "yes" may not necessarily mean "yes," that friendliness does not always mean friendship, or that statements that appear to be serious are really intended as jokes. The foreigner may be unsure as to when to shake hands or embrace, when to initiate conversations, or how to approach a stranger. The notion of "culture shock" help explain feelings of bewilderment and disorientation. Language problems do not account for all the frustrations that people feel. When one is deprived of everything that was once familiar, such as understanding a transportation system, knowing how to register for university classes, or knowing how to make friends, difficulties in coping with the new society may arise.