Let me save you some embarrassment

When I first came to japan, when I bought my first おにぎり, I had absolutely no idea how to open it. I found where the plastic was folded together and started pulling and tearing. Now this might seem like a no-brained to most (and I'll admit I'm weak in the 常識 area) but for those of you who don't know how to do it, I thought I would post a simple pic and leave you with some simple advice:

Look for the red arrows.

It says "したにひく" or "Pull Down"