//Create a new ChromeDriver
IWebDriver driver = new ChromeDriver();
//Navigate to www.google.com
driver.Navigate().GoToUrl("https://www.google.com");
//Find the WebElement of the search bar
IWebElement element = driver.FindElement(By.Name("q"));
//Type Hello World into search bar
element.SendKeys("Hello World");
//Submit the input
element.Submit();
//Close the browser
driver.Quit();