1. A method, including steps of receiving a message, at a mobile device, from a server requesting information from the mobile device; in response to said message, requesting a response from a user of said mobile device; and in response to said response, taking one of a plurality of possible actions in response to said message, said plurality of possible actions including at least: responding to said message in a first way, responding to said message in a second way, declining to respond to said message.