Make a survival pole: carve gorge hooks from a bone with a knife or a flake, then rig a pole from two sticks, a cord and a hook with Shift+R, like the spear. Cut bait from raw meat the same way; a bare hook catches nothing. Stand at a creek pool or a lake edge with the pole in hand, best at dawn or dusk, when rings show where trout rise. Hold left mouse to draw back and let go to cast.
Watch the float: it shivers when a trout nibbles, then goes under, and a click strikes. On the fish the rod stays up on its own. Hold left mouse to haul the line in and let go to ease when the fish runs and the rod creaks. Small trout come in within seconds; a big brown can still break you off if you haul against its run. A tired trout is lifted or beached onto the stones, flops there, and E picks it up to cook whole on a fire. Running or wading spooks the pool.
The rest came over the same day. Bites come within a minute at a good spot and trout jump often. The hand closes on the twine-wrapped butt of one willow rod that bends with the fish. Trout show in clear shallows as dark-backed shapes with their shadows on the gravel, a leap or a landing throws spray, and the field book gained a Fishing page with drawings of the pole, the gorge hook, the bait and all four trout.

