I'm very happy to be able to meet Chihiro Tamaki the author of this manga. She was telling her story of moving to the UK.
She was studying English and there is much we can learn from her about language and communication.
Stop being polite
I love her story about the time when she realized that it's easier to say directly what you want. She compared the Japanese way of critique and the UK style.
Don't be shy to speak English
She was learning English in class and soon realized that her Japanese classmates struggled to speak English. Many of the students from Spain had been in the same language class, but for them it was much easier to speak. That's when she realized that in Japanese culture people wait and listen until the end before they speak, while in Spain people enjoy talking and don't mind changing subjects.
Native Speaker's struggel, too
English is a foreign language for many people. That's why there are many different accents and many different ways of communication. Sometimes English is hard to understand even for native speakers, so you should never be afraid to talk in English.