This is a neat little watermelon hack by Dave Hax. I myself, cut the melon a bit differently, and discard the green rind before serving, but this technique presents the fruit really well. Perfect for parties!

I use the following technique, but with some minor changes. I cut the watermelon from one side to the other in the middle, before cutting it on the sides to get smaller cubes, and finish the whole thing off by seperating the rind.

Or, you can do it like this chef: