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She laid a sheet of the seaweed down (with the prettier side facing the counter)
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and covered most of the surface of the seaweed with a thin layer of warm rice. Too much rice and the whole thing will just taste like rice. If you think the rice needs more salt, I suppose you could throw a little on in this step.
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Then she laid the cucumber sticks and the crab on top of the rice. I cheated and used a big cucumber stick and a long slice of crab (with a little mayo spread on it) on the rice.
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Tightly roll the seaweed like a jelly roll.
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Lay the roll seam-side down and let it rest and "glue" itself together.
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Cut into coins. Eat right away, or wrap in tinfoil and refrigerate. It will keep for a day or two before the rice dries out too much to be enjoyable. You can also use cheese, eggs (hard-boiled or fried), ham, tuna, avocado, carrots, pickled radish or whatever suits your fancy.