The approach
Start with the right question.
Treat electronics, seasonal patterns and recent reports as clues rather than guarantees.
In practice
Make it useful on the water.
Keep track of counterexamples; a fish seen on sonar is not automatically a fish ready to bite.
Keep learning
Connect the dots.
Use this guide as a starting point, then compare it with the water you're fishing, the tackle you're using, and your own observations. Good fishing knowledge grows through real practice.