As physicists, and scientists in general, I don't see many of us sit down and discuss this. I think we just do it and it comes as second nature because it is what we have been doing all along. It is also difficult to define because there is no one single way of doing things. In the end, Mother Nature gets to decide what's what.
But because of that, I think it is rather amusing that most of the discussion on what a scientific method is being done primarily by non-scientists. Or to put it bluntly, by philosophers. I suppose that is part of what they do. But I can't help thinking of the Feynman's quote:
Philosophy of science is about as useful to scientists as ornithology is to birds.
One could say that a discussion of the scientific method is about as useful to scientists as ornithology is to birds. But regardless of that, I find it a bit weary that people who are discussing what it is are mainly non-scientists, which are people who have not gone through, or practice such method that they are trying to analyze. We all know that there is a clear difference between studying about something versus actually doing it. You could read and study about riding a bicycle till you're old, but that doesn't mean that you can gain the skill or have a feel on riding a bicycle. One actually has to get on a bicycle, practice many, many times, fall a few times, before one gains the ability to ride one. Reading or studying about something is different than actually doing it.
So how do people who have never done scientific research have the ability to discuss what the scientific method is or is not?