A better question than how do you fish would be why do you fish.
Aside from catching food, obviously, there’s quite a lot of people who fish because it’s relaxing. It combines all the stress-release of sunbathing and stargazing with the feeling of doing something productive, even if you never catch anything at all. Just explaining the how of fishing is only opening yourself up for a “but…that’s so inefficient” response.
It’s not about efficiency, when you’re fishing for sport–it’s about the experience.