In Dublin, tipping for private dining generally follows the same etiquette as regular dining out. Although it's not compulsory, it's appreciated as a gesture of gratitude for good service. A tip of 10-15% of the total bill is customary if the service has been exceptional. Some venues may include a service charge in the bill, especially for larger groups, so it's always a good idea to check the bill before adding a tip. If a service charge is included, additional gratuity is not expected but may be offered if you feel the service was exceptional. Overall, tipping is seen as a nice way of acknowledging the efforts of the staff, especially at a private event where the service is often more personalised.