We shall treat this subject under two aspects: first, if you have the whole boat to yourself; and second, if it is being shared by some one else.
If you have a boat to yourself, stand as near the centre of it as you possibly can without interfering with the boatman in rowing, and cover every inch of the water in front of you and as far to the sides as the wind will permit. Always be careful how you cast—that is, every time you throw your flies see that they land lightly on the water, as no one can expect to raise fish if any splash is made by either line or flies. Fine casting is not quite so essential, of course, when a fair breeze is blowing; but if the wind be light, then the difference between a well-thrown fly and the reverse is very apparent. After you have made a satisfactory cast, draw the line slowly to you by raising the point of the rod, taking care to keep the line as taut as possible. Also see that your bob-fly is tripping on the surface, as we consider that a well-managed "bob" is the most life-like of the whole lot. Do not fish with too long a line, unless, indeed, on an exceptional occasion, when you wish to reach the lie of a feeding fish. It is difficult to define a long line, but a good general rule is that it should never be longer than when you have the consciousness that, if a fish should rise, you have him at a fair and instantaneous striking distance. Remember that the time the flies first touch the water after each cast is the most deadly; therefore, cast often.
If you have only the share of a boat, the rule is that one man takes the stern up till lunch, and the other after it. For ourselves, we have a preference for the bow, and we generally find that most anglers prefer the luxury of the stern; so when both parties are pleased, there is no occasion for changing at all. The most important thing to bear in mind when you have a companion is, as we said in last chapter, to confine yourself to your own water. If the left-hand cast is the one proper to your end of the boat, cast as much to your right hand as you can without infringing on your neighbour's share of the water: all the water to your left hand is of course yours. The same remarks apply vice versa. Never stop casting so long as you are on fishable ground, for you know not the moment a good fish may rise. Certain it is that unless you keep your flies constantly going, you cannot expect to have the same basket as the angler who does. Keep your eyes on your flies in a general way, and do not let your attention be distracted so long as they are in the water. Every angler has experienced the annoyance of missing fish when looking elsewhere for a single moment—either at another boat, or at a fish "rising to itself," or at the sky, or at something else. When the eyes were turned to the point from which they should not have been diverted, they were just in time to see the water swirl, and the hand gave a futile strike at what had disappeared a second before. Perhaps we should have said at the beginning of this chapter to place implicit faith in the flies with which you are fishing. Nothing is more ridiculous than whipping the water with a cast, of the suitableness of which you have any doubt; and to guard against any such chance, study carefully the state of the weather and the wind. If very clear, use sombre flies; but if a dark day, use brighter flies. You will of course regulate the size according to the breeze, but as a rule, err on the side of small flies. When you raise a fish, strike at once. It is quite possible that by this method you may once in a while strike the least bit too soon, but it is a safe plan to go by. There is always a particle of a moment spent in the tightening of the line; and by the time the angler sees a fish at his flies, he may safely conclude that it has already seized or missed them, and the sooner he ascertains the true state of matters by striking instantaneously, the better. If the fish has not been touched by line or hook, cast gently over him again: the chances are that there will be another rise, and, if the fish has been feeding, every likelihood that the second or even a third time may be lucky. In striking small fish, the least tightening of the line is sufficient; but with large fish, when your tackle and hooks are strong, strike firmly home to send the steel well in, right over the barb. Tackle that will not stand this had better be given away or destroyed,—the latter for choice.