As part of the upcoming expansion, here are some new skill exclusive for those characters with Diplomatic background:

COURTESAN SCHOOLS 

The Art of Conversation: When conversing politely with someone in private you may roll 2d6+Courtesan. On 10+, ask a question from the list. On 7-9, also but the other person asks you another question.

• Who do you serve?
• What would you like me to do?
• How can I make you _______?
• How do you really feel? 
• What do you want most?

The shadow of the cherry tree: You have a good relationship with someone (say their name and clan) up to three ranks above you on the social ladder. You can ask him for information or favours from time to time if you treat him appropriately. The relationship goes both ways and your contact can ask you for things as well. 

Golden Palace: You know how to organise parties and banquets. You can have guests up to two ranks above you on the social ladder.