As a fishing instructor, your duties are to provide your clients with fishing lessons. This includes showing them the basics of how to properly bait a hook and helping them to understand how to pick the appropriate lure for a given type of fishing. Fishing instructors often specialize in a particular type of fishing, such as fly fishing, deep water fishing, or lake fishing. As your clients advance, you can show them more complicated aspects of the sport, such as different ways to cast or more advanced equipment.