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Bilingual news: For nearly 250 years, it has advised the British public on the finer points of social etiquette, from how to write a thank-you note to what to do when one meets the queen. Now, Debrett's has lifted the lid on its very modern guide to good manners for the first time, disclosing the questions that most trouble the British public in 2014.

Forum topic: I'm over 30 and living with my parents. I'm still single and I think I will move out when I'm married. In China, where rental and housing prices are way over the top, living with parents is a very normal thing. Usually when men are married, they will bring their wife to live with their parents' family. Do you think it is acceptable to live with parents at that age in your country?

Buzzword: As taxi apps become smarter, experts predict they will sync with social networks and calendars to provide an even more efficient and tailored service to their passengers. Here comes the rise of the "smart taxi". TVs in the back of cabs could automatically change channel based on a user's likes or dislikes, or drivers could anticipate when and where a passenger will need a ride.