To catch it, of course. At least, that’s the way the Maori tribesmen of New Zealand do it.
It is one of the oldest and most successful ways they know. In the streams and lakes of New Zealand, fish swim in and out of the clumps of coral or rock. Sometimes, they pause for a nap. When they sleep, their tails frequently stick out from their hiding places.
The Maoris wade into the water very silently, trying not to make a ripple and give away their presence. When they spy a fish tail, they reach down and tickle the side of the fish.
In trying to wiggle away, the fish backs out of the rocky hiding place right into the waiting hands of the fisherman. Then the Maori must use all the skills at his command in order to keep a firm hold on his dinner.