If I visit a person’s home in korea, what I do?

 If you visit a Korean’s home, as usual come to the home with a bright smile. Say to hello to his family. Korean culture is usually known for kind heart and smiling. So if you smiled to his family, his family smiled too.

 Also, Korea is famous for Ondol. Ondol is floor heating system. So you have to take your shoes off and feel the floor’s heating temperature.

And the other tip is Korea’s food culture. Korean use chopsticks. So if you want to have a nice meal, you should practice how to use chopsticks.

What advice should you give to a foreigner coming Korea for the first time?

When you visit Korea, first you should learn basic Korean like annyunghaseyo, kamsahapnida.
Because, some Koreans try to evade foreigners who don't speak his language. And when you speak Korean they may help you freely.

 Second, you should go to Gyeongbokgung (Palace), Gyeongbokgung is the oldest of five royal palaces of the Joseon period. And Korea has many houses where you can hire hanbok. So if you wear the hanbok and visit gyeongbokgung, you might feel King of Joseon Dynasty period.

 Third, you make Korean friend and visit his home, Living with him, you eat Korean food and learn about Korea's duty.