How do you keep a console on the screen when making a C Sharp program?

I am trying to learn how to code in C# and I am using Microsoft Visual C# Express Edition. I was making a console program, just a simple "Hello World!" program and when I debugged it, I could tell that it worked in doing what I said, and setting a break point in the program I figured out it did execute that fine, but it flashed the program up to fast to really be able to see much. My big question though, is how do I keep the program from opening and then instantly closing? I'm using a book to learn and it doesn't really say what to do if this happens...