Do you slurp udon?

Online Answer
For soup served in larger bowls — often containing noodles such as ramen, soba and udon — use the spoon provided for the broth. When eating the noodles, slurp away! Loud slurping may be rude in the U.S., but in Japan it is considered rude not to slurp.
Related Questions 📌
Japan is a country which has many unique cultures within it, and slurping is one of the most unusual characteristics! This can be a huge surprise when you come across it for the first time as it often is considered as a bad behavior at meal in many other countries.
For soup served in larger bowls — often containing noodles such as ramen, soba and udon — use the spoon provided for the broth. When eating the noodles, slurp away! Loud slurping may be rude in the U.S., but in Japan it is considered rude not to slurp.
It is impolite to reach over someone's plate to pick up food or other items. ... It is also rude to slurp food, eat noisily or make noise with cutlery..