Do I look like I work here?

Every time I walk into a store or any other public place that provides a service I am constantly asked by another shopper or visitor where something is located or how to work something.
Just now a woman in the library asked me how to work the computer. Actually she was standing in front of a monitor listing the library's activities, so I did polite inform her I thought the computers were in the next room.
Not one visit to a store goes by with out a fellow customer asking me what aisle a product is located in. Ok maybe they are confused and I look like someone who is helpful but honestly, I'm not. My favorite is on a Sunday morning in a certain department store when they seek my assistance. I don't even own a pair of brown khakis and a red polo shirt! But then again I'm generally fully clothed while they are still in their pajamas. After all it is 8 am!