ahhh well you fold the _._._._. lines up, forming a "V". These are called "valley folds". These lines: _ _ _ _ _ _ _ are called mountain folds, and you fold them down, so they look like this: ^. As for how much you fold, It doesnt really matter, just as long as the tabs are glued to their specific edges. As for the solid lines: ______, you just cut those. Good luck, it really isnt that hard once you catch on.