1. Stand at the edge of the dock and cast the lure. The bob should land on the water surface.
2. Watch the bob (floating stick thing on the surface). The fish don't catch the bob, they catch the hook dangling beneath the bob (not visible on screen).
3. You'll see the bob rise and fall. When you notice the bob is in the sinking motion (upward motion is too late), RAISE YOUR ARM UP (raise the remote) so your arm is almost verticle. Link's arm will also appear verticle. The screen will say you got a bite. If not, wait for the next sinking and change your timing.
4. Keep your arm up. To pull the fish out, bob the fishing rod up & down by slightly dropping and raising the remote (wrist flicks or arm movments; if you drop your arm to a, say, 45 degree angle, you'll give up the fish, so don't drop your arm too far). The movements should not be violent.