You have no reflection at all on that material. The easiest way to add reflection is to use the "Add Reflection" Wacro on the pull-out menu on the right of the Material Room. Then you can start to play with different ways to control that reflection using maps, if you want to.

Apologies if you already know this next bit: you need to switch on Raytracing and have at least one raytrace bounce to see reflections in your render.

"If I were a shadow, I know I wouldn't like to be half of what I should be."
Mr Otsuka, the old black tomcat in Kafka on the Shore (Haruki Murakami)