Mobile devices provide a variety of techniques for presenting messages from sources to a user. However, when the message pertains to the presence of the user at a location, the available communications techniques may exhibit deficiencies, e.g., reliance on the memory of the source and/or user of the existence and content of a message between its initiation and the user's visit to the location, or reliance on the communication accessibility of the user, the device, and/or the source during the user's location visit. Presented herein are techniques for enabling a mobile device, at a first time, to receive a request to present an audio message during the presence of the user at a location; and, at a second time, detecting the presence of the user at the location, and presenting the audio message to the user, optionally without awaiting a request from the user to present the message.