The technique guides, for the part that happens after the box is open. How to flip a balisong starts with the safe handle and the bite handle, then walks through the basic open, the basic close and the vertical open before moving on to the fan and the twirl. It also makes the case for learning on a blunt trainer first, which your knuckles will appreciate. How to sharpen a balisong covers the step most sharpening guides skip on a butterfly knife: locking the handles so they cannot swing while you work the edge on a whetstone, then finishing on a strop.
Written for beginners who have just got their first knife or trainer, and for owners whose edge has quietly stopped cutting paper. Practise slowly, over something soft, and check your local knife laws before you carry.