Basically a list of simple tips and tricks you can use to talk to people. The book sounds like a combination of very average blog posts found on the Internet.
It's a bit boring, but it's worth reading in case you know nothing about common social norms. Personally, I did not find a lot of value in it.
The main problem with this book is that it mentions too many points and elaborates on none. It also gives no real-life examples, which I was really hoping for.