You can use alot of the issues discussed in this forum to inform and enlight. (I am talking from a science perspecitve here)

Use it in a sport fishing mode. How to target, etc.

Salmon smell in parts per million, have smell some smelly jelly, not only to feed, but also to find their native waters.

Predatory fish, travel in schools , etc. expalain, Flashers, Squid, Spoons, Smell, etc.

Depth, show different weights, downriggger balls, leads, etc.

Try to promote anything that they can touch, feel, smell, etc.

Show your passion, the more interest you portray, the more interest they will have.

Let us know how it goes.