What NOT to Do in Korea: 7 Cultural Mistakes to Avoid (2026 Edition)

 

Introduction

South Korea is one of the safest and most welcoming countries in the world, but it also relies heavily on social harmony and shared etiquette. A small mistake—like sitting in the wrong seat or using the wrong ink—can unintentionally signal disrespect.

To help you blend in (and avoid awkward stares), here is the definitive list of what NOT to do as a foreigner in Korea.

1. DON'T Sit in the "Priority Seats" (Even if Empty)

This is the golden rule of the Seoul Metro.

• The Mistake: Sitting in the designated seats at the ends of the subway car (for the elderly) or the Pink Seats (for pregnant women) because "no one else is using them."

• The Reality: In Korea, these seats are kept empty out of respect, even during rush hour. If you sit there as a healthy young person, you may get scolded by an elder or secretly judged by everyone else.

2. DON'T Tip at Restaurants

• The Mistake: Leaving cash on the table or telling a taxi driver to "keep the change."

• The Reality: Tipping is not part of the culture. In fact, running after a customer to return "leftover money" is a common source of stress for waiters. Just pay the bill and say "Thank You" (Gamsahamnida).

3. DON'T Stick Chopsticks in Your Rice

• The Mistake: Pausing your meal by sticking your chopsticks vertically into your bowl of rice.

• The Reality: This looks exactly like the incense sticks burned at funerals to honor the dead. Doing this at the dinner table is considered a curse or bad luck. Place them on the table or the chopstick rest instead.

4. DON'T Wear Shoes Inside

• The Mistake: Walking into a home, guesthouse, or temple with your shoes on.

• The Reality: The floor is where Koreans sit, sleep, and eat. Bringing street dirt inside is a major hygiene violation.

• Pro Tip: Some traditional restaurants also require shoe removal. If you see a shoe locker at the entrance, take them off! (And make sure your socks don't have holes).

5. DON'T Write Names in Red Ink

• The Mistake: Writing a "Thank You" card or signing a guestbook using a red pen.

• The Reality: In Korean history, red ink was used to write the names of the deceased in family registers. Writing a living person's name in red is a superstitious taboo that implies you wish them harm or death. Stick to blue or black ink.

6. DON'T Be Loud on Public Transport

• The Mistake: Having a loud phone conversation or laughing boisterously with friends on the bus or subway.

• The Reality: Public transport is a "quiet zone." You will notice everyone else is silent or whispering. Being the "loud foreigner" is the quickest way to annoy locals.

7. DON'T Panic About Toilet Paper (The "Bin" Rule)

• The Old Rule: "Don't flush paper, put it in the bin."

• The 2026 Reality: Most modern buildings now allow flushing. However, if you are in an older building and see a trash bin full of paper next to the toilet, that is a sign the pipes are old. In that specific case, do not flush—use the bin.

Conclusion

Koreans generally give foreigners a "free pass" for small mistakes, but following these rules shows that you respect their culture. When in doubt: be quiet on the subway, check for a shoe locker, and keep your red pen in your bag!