I am a grass. Yes, it’s true. I take part in the habit on a weekly basis, and it gives me a real thrill. Some of my friends are doing it, too. Let me explain. “Grasses” are the people who convinced Levi’s to make a jean better suited to the larger African derriere (true story, as “Grass research” paved the way for the new Eva range for bigger booties!). “Grasses” go out there, armed with a camera and questions, and get the lowdown on what people think about the products and services around them.