I chose the market mp3 posted by Andrew Kendell. It was obviously recorded in the market at Pitt so the sounds are quite familiar. You can hear the clinking of forks and spoons on the dishes, multiple people having multiple indistinguishable conversations at different volumes, and people walking by while talking so that their voices get louder then much quieter. In general it sounds like any busy commercial area.
I imagine the sound is from a busy airport. A single business man is sitting at a cafe in the terminal in one of the tables that sit outside in the main walkway. There are people everywhere walking in every direction and every other table is also full of people grabbing a bite to eat just before their flights. He sits there in his suit sipping a black coffee with a half eaten warm croissant sitting on the plate in front of him. He listens to the faint generic music playing from inside the actual cafe while he watches the many different people go by. He watches the people because he’s waiting for his associate who has a connecting flight to this airport so that they can travel together on the next flight. Wow this is really hard to make a 300 word description out of 10 seconds of sound.