Or, at least tone it down.
This guy at the airport let everyone 10 rows away know about the details of the bridge his company is building. When you add his comments to the loud speakers in the airport itself and the other cell phone users screaming their business, and airport lobbies are becoming the worst noise polluters there are.
What is it about people talking on their cell phones that cause them so talk short of the scream level? It is almost as if they think they are talking on a tin can through a string.