What advice sould you five to a foreigner coming to Korea for the first time?

I think foreigners should experience Ttemiri. Because foreigner don't have Ttemiri.

If you do Ttemiri, you could have a clean body. In addition, you can feel cool.

Forigner should go traditional markets. Because traditional markets you could feel

the affections of mother. In addition, They can eat a variety of food such as 전(Korea Pan cake),

국밥 (Boiled rice served in soup) and fish. Traditional markets will be a happy place for foreigners

Foreigners will be probably surprised by delivery culture in Korea.

Because it runs every day, 24hours. For exaple, chicken, pizza etc...

And if you eat food delivery, They five you a coupon.
youy have a 10coupons is free at one time.
If you will collect 10 coupons, you can get free service by the store.