How smart are they? I've done quite a bit of scuba diving, and the waters around here are loaded with Smallmouth. They pick things up quickly. A couple stories.
We were catching nice bass regularly along a section of lake Erie shore. We decided to dive it to learn what made it productive. The bottom was rocky. As we went along we turned over a few, and bait (crayfish, goby, darters) would shoot out. Then, a few bass began to follow us. As we turned over the stones, the bass would attack the prey, soon we had better than a dozen around. after a few stones, we could put our hand on a stone, nod to the bass, who would assume an attack posture, and flip the rock. All you saw was the flash of bronze.
I dive the same section of the upper Niagara river Regularly. I began to notice the same few bass stayed with me the entire dive. As I work slowly along the bottom, I would kick gobies out of the alga that tends to collect in the slower parts of my drift. These bass knew it and flocked to us as soon as we hit the water. they must have keyed in on our exhaust bubbles. It went on for two seasons. The ringleader, who we named Tyrone must have passed on, because I don't see him this year . I could touch him, he became so comfortable with us.
They are smart, for sure. Their brazenness and aggressiveness is their weakness.
Here's one who has his own place