Mouse clicks have become a staple of online video because everyone recognises the sound of using a computer, even without seeing the device. Creators use the short, neutral click to make screen recordings feel real, to guide viewers through tutorials step by step, and to add a small comic beat when a character makes an obvious choice. Unlike a musical chime such as a ding sound effect, it does not suggest success or failure on its own, so it fits neutral actions, menus and everyday browsing. Its popularity comes from that flexibility, working in serious explainers and light memes alike.