Watch the Right Hand Mutes online guitar lesson by TrueFire from The Indispensable Toolbox for Guitarists
Right Hand Mutes - Concept is a video guitar lesson presented by Rich Maloof and is sourced from Guitar 201: Breakthroughs.
The right hand can dampen notes as well, and it's a totally different feel. This technique is called palm-muting. You might find it easier at first with a medium or light-gauge pick. You should be able to make out the notes in the chord, unlike the left-hand technique where it's a complete mute except for the percussive hit. This technique can be used withopen chords, too - so if that F is killing you, try G to D. There are lots of applications for palm mutes. It's big in metal and rock, but not exclusively.