When you say nothing at all strumming?

Strumming is a technique used in playing stringed instruments, such as guitars, by moving the hand and fingers across the strings. When you say nothing at all strumming, it is referring to the act of strumming the strings without pressing down on any frets, resulting in an open-string sound. This technique can be used to create a rhythmic accompaniment or as a standalone melodic element in music.