So many fun things to do and see.  Go to a palace, eat the food and go to Seoul tower.  You can also google the US military USO for a really good tour of the DMZ (anyone can take the tour).  You'll need your passport.  If you are hungry eat Bulgo-gi or Bi Bim Bap.  Shopping on Dongdaemun or Itaewan will net you some good finds.  You can almost always bargain.  Never take the first price.  Take the #3 bus up to Seoul Tower and see the view.  Also building 63 has a great view.  Using the subway is really easy.  It's all in English and cheap!

Itaewon is a major tourist hangout and many flock to it for it's night scene, although Hongdae is a trendier. Insadong is the place to get gifts, also has lots of traditional restaurants. Check out a Korean Sauna (Jim Jill Bang) at least once. Cheap place to stay overnight as well, if you don't mind sleeping on the floor with many other people. Duc (Chicken) Galbi is a must, or Dwaegi (Pork) Galbi. Near city hall you can check out a traditional korean dance and music performance. Very interesting. SC banks allow you to use your foreign bank card. There everywhere.

I think things there are sort of expensive...
And you can find the tiniest tin of coke there...lol

try haggling. its pretty fun.

Seoul, The peninsula shares its northern border with China and Russia. To the east is the East Sea, beyond which neighboring Japan lies. To the west is the Yellow Sea. In addition to the mainland, Korea includes some 3,200 islands.
Mountainous terrain accounts for some two-thirds of the territory like Portugal, Hungary or Ireland.
Beauty of 4 season of de country', Autumn, Spring, Winter you must see.. Enjoy Korean cuisine satisfies healthy both taste and nutrition. Famous Ginsen Soup,Kimchi, bibibab "bibimguksoo", Royal cuisine,nine side dishes are grilled amadai, grilled beef and seafood stew with abalone, scallop, sea cucumber roll. Beatilful Jeju Island must visit natural..hydrofoil skims over the water between Busan and Yeosu.

go to seibu market..and try eat kimchi..

For the most part the citizens are pretty nice - However, check news listings about demonstrations especially near US Military bases. Demonstrations do tend to turn more violent then not. The city is very different then shoping in the US. Each part of town is basically set up to deal with one type of merchandise such as maintainance supplies in one section, clothing stores in another and electronics in another. Warning: There is a market to purchase electronic items and pirated movies. The movies are usually taped in movie theaters and definately not good quality as some people have said. I personally will say buyer beware. I would prefer to go to a legitamate store for these items. Pickpockets are severe in some parts of town. There use to be a clothing market and thousands of people are jammed together in a small area so beware of your money, purses and backpacks. This particular clothining market had a severe fire back in 2005 so I am not sure if they are back up and running. Food - Asian food is abundant as you would guess. Good luck on the food but I would honestly not trust the street vendors as they are not regulated for health and safety. American food is also available. Transporation: Beware when crossing streets as most motorists do not regard safety of others and it is common for motorists to ignore traffic signals and signs. Do not drive your own vehicle or rent a vehicle without insurance - A lot of motorists are not licensed nor insured. Hit and Runs are very common in Seoul. The best transporation is the underground subway system which is decent and very inexpensive.

amazing place with amazing tastes

Stay in hotels where the airport limousine stops. It's a lot convenient and economical.
If you love shopping, stay in Myeongdong, Insadong, Dongdaemun or Namdaemun areas.

Sub-way train in Seoul is quite easy only that you dot see a lot of things compared to buses. But the good thing about transportation in South Korea, their ecards can be used to taxis, buses and subways.