Step 5: Dilute, sweeten, and enjoy!
Anyway, heat the water on the stove and stir in the sugar. You don't need to boil the water, but you do need to get it hot enough so the sugar dissolves. Stir it frequently until it turns clear. The sugar-water will be markedly more refractive than plain water, because of all the dissolved sugar, but you should be able to see the bottom of the pan clearly.
There's an argument that I should have taken pictures of making the syrup for completeness, but dissolving white powder in clear liquid to make another clear liquid is the sort of thing even the dimmest Photo 102 student would recognize as "not visually interesting." My pedantic side demanded one, though, so it's in this batch as well.
In any event, that's it! You can drink it as it is, but it'll improve with a month or so of sitting. It won't freeze unless you added a lot of water, so feel free to keep it in the freezer. Good luck!