Usability testing is a crucial process that helps developers refocus on the client's needs by identifying usability problems and understanding how users interact with their application. Conducting a usability test involves creating a script with clear goals, facilitating the test session, and recording user responses to identify areas of improvement. A good facilitator should ask leading questions, elicit emotional responses, and avoid telling users how to complete tasks. The goal is to understand the user's experience and make data-driven design decisions. Usability testing can be conducted in-person or virtually, and it's essential to consider the target audience and adjust the script accordingly. By conducting usability tests, developers can identify patterns, prioritize design improvements, and build a better product that meets users' needs. It's also important to consider the challenges of timing and user type, but ultimately, usability testing is a valuable tool for delivering a right product.