Please say it ain't so

Here in our new office building there are several kitchens on every floor. They're not real kitchens, per se, more of a "pantry." They have a sink, a microwave, a refrigerator, cabinets, and three trash bins, but no real stove or oven.

This morning I was bent over, nose to glass, watching my water heat up for tea. I wanted to open the door early if the water came to a boil before time was up.

The fridge opens away from the rest of the kitchen so I couldn't see who said "Hello Anne," while they put their lunch in, and I didn't recognized their shoes.

How did they recognize me? By my big butt sticking out?