User testing is a process where real people try out a product, like a website or app, to see how easy it is to use. During these tests, users perform specific tasks while observers watch and take notes. This helps identify any problems or confusing parts, allowing designers to make improvements based on actual user experiences. The goal of user testing is to ensure that the product meets the needs of its target audience. By gathering feedback from users, companies can create a better experience, leading to higher satisfaction and increased chances of success in the market.