There really isn't any other way to explain that. He did a good job of doing so. But, just to try and give some extra support, I will expound upon what gster123 said.

Open the Hypershade and create a phong or blinn.
Change the shader's color to black, and set it's Reflectivity to 1. Assign it to the object that you want to reflect.
If you want the Reflection to be of an image, connect the image to the Shader's reflected color.
If you want the reflection to be of the surrounding environment that the object is in, enable Raytracing in your Render Globals.

Either option you choose should get you the desired results.

Hope this helps!