Palm muting is a guitar technique that involves muting the strings with the palm of your picking hand while strumming or picking. This creates a percussive, rhythmic sound that is commonly used in rock, metal, and punk music. To palm mute, simply rest the side of your palm on the strings near the bridge of the guitar, and apply gentle pressure. The amount of pressure you apply will affect the amount of muting, so experiment to find the sound you want.
Palm muting is a versatile technique that can be used to create a variety of sounds. It can be used to add accents to your playing, or to create a more aggressive, distorted sound. Palm muting can also be used to create a rhythmic effect, by muting the strings on certain beats. This can be a great way to add interest to your playing and create a more dynamic sound.