Japanese people often use "thank you" and "sorry". You might think that because it is said so often it might sound overused.
In Japan, it is common to hear on the news, cases about underwear theives (stealing underwear from washing lines).
3. Many people wear white masks
Japanese people wear masks because they prefer not to transfer bacteria that they may have to others. They also do not want to receive bateria from others.
Japanese people like make a pose holding a peace sign when getting their photo taken.
This is a polite way to sit. It is a unique custom in Japan.