Well then don't be a fucking moron. Sorry for being a dick towards those kind of people, but the voice prompts walk you through the entire process. All you gotta do is listen to them. I didn't have any issues when I first tried one 20 years ago. They're self-explanatory.
I mean at this point they've been around long enough that everyone should know how to use them by now, unless you recently moved from a country that doesn't have them. But again, the machines walk you through the process every time.