"I dunno... I guess you just um... point them at each other till they form a point that 'sticks.' Once it stays in place, and trust me, that's difficult with these damn uneven cards, you have your first point. I'd start with trying to get two points next to each other a few times. Once you've got that down, try building a new point between the first two. That'll make three, and it should be higher. If you lay a card down over the first two points, it makes it much easier to stack that one on top, but both techniques work. Now, you can also use other methods to build 'flat' walls. That's a bit odd though. Those blow over real easy, so you have to be careful with your breathing... jeez... well... I guess you can try it for yourself. You can probably do it better than me seeing as your hands are probably more refined. I can use a bow just fine, but this takes a different kind of care."