It's not uncommon to witness 50-60 snook piled on top of each other in the glow of a dock light. Look for a light that's positioned at dock height and casts a focused beam onto the water. Lights with large shade reflectors usually generate the desired effect. Snook are easily spooked, so stay at least 60 feet outside the shadow line. For easy feeding, linesiders face into the current, waiting for baitfish to swim by.
Accurate casting is essential, as an errant cast often lands the lure right in the pack of fish.
This forces the fish down and sight fishing is over for that dock. Cast beyond the shadow line, along the side of the dock and then retrieve your lure. If using live bait, cast in the same area, allowing the current to carry your bait to the fish for the perfect presentation. Always keep a tight line. Feeding snook will be popping on the surface, eating a variety of meals.