Take a sheet of A4 (or letter) size paper, fold in half upward to make a crease and unfold.
Fold all four corners to meet the center line.
Fold the item in half to the left.
Fold the item in half downward.
Open the upper bottom flap, placing the bottom edge vertically.
Turn the item over.
Fold as previously.
Fold the top flap downward.
Fold the top part backward. Hold the cracker by the right corner and pull it down sharply. BANG!!
That’s how the cracker works!