Respect for privacy and discretion are key values in social interaction. In public spaces such as trains, strangers normally do not speak to each other. Kindness and politeness in social interaction are expected; in smaller shops, clients and vendors thank each other several times. Cultural differences between the linguistic regions include the more frequent use of titles and professional functions in the German-speaking region, and the use of a kiss rather than a handshake in the French-speaking region.
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