3. Korean people believe that blood types can tell a lot about a person's personalities. They believe that each blood type is associated with certain traits and characteristics. For example, people with blood type A are believed to be organized and perfectionists, while those with blood type B are seen as creative and outgoing. Blood type AB is associated with being rational and calm, while blood type O is believed to indicate a confident and strong-willed personality.

4. Korean people celebrate their birthdays according to the lunar calendar. The lunar calendar is based on the cycles of the moon and differs from the Gregorian calendar used in many other countries. This means that a person's birthday in Korea may not fall on the same date each year. The lunar calendar is still widely followed in Korea for various cultural and traditional celebrations, including birthdays.

5. The first birthday, also known as Doljanchi, is considered an important milestone for children in Korea. It is a significant event that is celebrated with family and friends. During Doljanchi, various rituals and traditions take place, such as the Doljabi ceremony. In this ceremony, the child is placed in front of a table with different objects representing different professions or future paths. The object that the child picks up is believed to indicate their future career or destiny. This celebration is a joyous occasion and often involves feasting, games, and gift-giving.