The character Sai, reads a book which has stuff like

The bond between 2 people increases when you give them a nickname.


When a woman feeds you, it is a clear sign that she likes you.

I want to read this book if it has a real version, or something close to it.

  • if you frequently hang around sites like 9gag there are post with things like that, so i think there has to be a book from someone who gathered all those and put them into a book. Try searching for a book on psychological lifehacks. – Eumel Nov 24 '15 at 15:50
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    Sai reads many books. Therefore the sort of info he gains about people and interactions is not through a single source (in this case, a book). And most likely, the books shown in the series are just Naruto series exclusive. And mostly compiles of general facts about social interaction and bonding. – Ero Sɘnnin Nov 24 '15 at 17:37
  • @EroSɘnnin "And mostly compiles of general facts about social interaction and bonding" so then Tsunade must really really like Jiraiya after feeding him that knuckle sandwitch that almost killed him – Memor-X Nov 26 '15 at 4:03
  • @Memor-X: like I said, general facts about social... Jiraiya's pervy nature called for that punch. Also, in the end, we find out that Tsunade did really like him a lot :) – Ero Sɘnnin Nov 26 '15 at 7:20

No, the book Sai reads is to make the fact that he doesn't know anything about human emotions more pronounced. It's to also show the fact that he takes his position as being an information gatherer into play. He tests them on the field, and treats finding his emotions like a mission.

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