Oshiete! Yuka Sensei - Japanese Polite Speech - (Nihongo no mori - Youtube)

Understand the level of politeness of honorifics
When speaking with someone of higher status, the polite speech “Keigo” used for addressing a “teacher” differs slightly from that used for a “senior.”
This book introduces three levels of expressions: “expressions used in conversation with friends,” “polite ways of saying things,” and “more polite ways of saying things.
You can learn the different levels of politeness of honorifics and the impression each expression gives with this book.

□ Learn how to speak in a way that makes a better impression.
This book introduces the “unimpressive way of speaking” and the “charming way of speaking” tailored to different situations.
We explain what aspects make the “unimpressive way of speaking,” and how to improve the impression by choosing different words.