Dancing is not common in local restaurants and cafes. As a rule, tips are included in the bill and their usual size estimates around 10 - 15% of the total order.
Make sure you always arrive on time on personal and business meetings. Local people are very punctual, and even a slight delay is considered a sign of disrespect and neglect.
Local people can be distinguished by dining very late. This is the reason why so many restaurants open only after 18:00.
While preparing for the trip, you should take into account that the voltage in Rotterdam is 220 V, so make sure you check the compatibility of all electrical appliances. Some hotels may have special sockets for electric shavers, the voltage in which is 110 V.
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