Watching the English: The Hidden Rules of English Behaviour

A very useful read. Definitely clarified why the English would be put off by US behaviour. What's interesting is that English that read the book find it humorous and amusing, while as a foreigner I found it factual and dry. Even had to take a 3-book reading break to finally finish it.
Most important lesson: they are reserved and modest: http://www.langmaidpractice.com/wp-content/uploads/Rules-of-E1-1024x702.jpg

No more non-fiction for a while, please.