This segment demonstrates how to use Postman to create and send HTTP GET requests to test API endpoints. The speaker clearly shows how to set up a new request, specifying the HTTP method, URL, and then sending the request and interpreting the JSON response received from the server, highlighting the simplicity and efficiency compared to using a web browser, especially for more complex API interactions. Postman simplifies API testing beyond browser capabilities. It lets you craft HTTP requests (GET, PUT, PATCH, etc.), specifying URLs, headers, and body data, making complex API interactions manageable. Download from postman.com and create requests easily via a GUI, eliminating the need for full front-end development during API testing.