Step 1: How to and Tips
PRACTICE IT BEFORE YOU COMMENT, you'll eventually get it.
HOW TO DO IT
Put your middle finger and your pointer finger on the top, and your thumb on the bottom. Have the hinge on your left. Now in one quick motion squeeze with your fingers, top two fingers slide down, and your thumb slides up. The zippo magically opens.
At the top of the lighter, keeping your two fingers near the edge of it makes it somewhat easier.