Read the details of your listing agreement. If your agent has an "exclusive right to sell", you will still owe her the commission.

Give her your agent's card.

When I sold my house the commission was 5% whether my agent had to split it with a buyer's agent or keep the whole thing. If it were me, I'd direct the co-worker to the agent and step out of the picture.

Usually unless someone was specifically exempt from the contract the agent gets their percentage. READ your contract!

Aloha Deaniel, depending on the type of listing contract that you sign, you would still have to pay your listing agent the commission agreed upon (exclusive right to sell), or you might be able to sell the house on your own while still being listed (exclusive right to list, but most agents dont like this type of listing as they are competing with the owner to sell the property). If the agent has the exclusive right to sell, I would ask your coworker if it's ok that the Realtor contact her and allow the process to unfold (your agent is a professional representing your best interest, let them do their job and earn their commission).

Here is a link that might be useful: Buyer's Articles

After what I went thru dealing with friends and coworkers, I would hand them a card and tell them to contact your agent. Too many people just wanted to snoop around and really were not interested. I would not show the house, or even discuss it with them.

As Marie said, lots of times people are just curious...
& if they are indeed interested in the house, they'd be in an awkward negotiating position...& so would you.

mauirealtor, it's against gardenweb's rules to advertise your own business on the forums, as your links do.