Hamburger

Walked up to a girl sitting by herself in my night class tonight. As I set my books and laptop down on the desk next to her, I asked her what it was she was eating. I assumed it was a West Coast Chicken Sandwich from the cafe here on campus, because it is a sandwich I get regularly and am particularly fond of. I was surprised when she answered it was a hamburger. It definitely didn't look like any hamburger I had ever eaten but I decided not to press the issue further.
I feel bad admitting the fact that I have sat next to this girl for about the past five classes, and tonight was the first night I found out her name. When answering, her eyes shifted nervously from me to her sandwich, as if I was going to steal it from her.
Shelby.
I smiled expecting her to ask me the same question back, but she never did. After waiting a few seconds to be sure she wasn't going to say anything, I took advantage of the opportunity to go to the bathroom before our three hour class started, and left Shelby to devour her hamburger in silence.