Study it, and develop it.

Don't be disappointed if you lose quite a few trout.

You will lose them often until you get the hang of the thing." Some distance above the pool Dick stepped into the water.

He walked along slowly, not stirring up much dirt from the bottom.
All the time he kept his line behind him, frequently lifting it and whipping it into the water again.

The gayly colored flies and the glistening spoon just above the hook flashed in the sunlight every time he made a whipping cast.
Not twenty feet had Dick gone when he felt a sudden, violent tug.
With the true patience of the trout fisherman, Dick didn't become at all excited.