Muting

This technique is used quite often in all styles of music and sounds something like dead notes. The notes sound but don't ring. It It's a kind of staccato effect.

To accomplish this technique you simply place the side of your pick hand (heel portion of palm) on top of the bridge saddles, and play the notes you wish to be sounded. When you get it right it can offer you greater control over your sound as well as being a nice effect.