To gather requirements for a new feature or product, I would start by engaging with stakeholders to understand their needs and expectations. This involves conducting interviews or workshops to gather detailed insights. I would also review any existing documentation or data to ensure a comprehensive understanding of the current system or product. Once I have collected all the information, I would document the requirements clearly and organize them into a structured format. This documentation would then be shared with stakeholders for validation and feedback. After incorporating any necessary changes, I would work closely with the development team to ensure they have a clear understanding of the requirements, facilitating smooth communication and collaboration throughout the project.