How do I handle HTTP client errors in Go, such as connection timeouts or refused connections?

In Go, use the `net/http` package. Check for errors returned by `http.Get`, `http.Post`, and other HTTP methods. Handle `net.Error` types for specific network issues (e.g., `Timeout()`, `Temporary()`). Use context with `WithTimeout` to set deadlines for requests, preventing indefinite hangs. Also, check for `ErrClosed` when the connection has been closed.