Traveling to Korea need advice?

[Jack]

I am going to Seoul Korea in the near future with a freind. Is it easy for english speaking Americans to travel around the city ? Do they speak English? Is there anything I need to know before I travel to the country?
Is there any books or anything that could help me travel there? This would be my first time...thanks!!

 

[Hello]

Buy a Korean to English translation book at your local bookstore before you leave. Bring vitamin supplements because whenever people travel their immune systems get worse. Bring all your essentials, have fun.