A method and apparatus for improving efficiency and accuracy in event information exchange among users of navigation systems or other devices through wireless communication. The method includes the steps of: receiving information indicating an upcoming event, an event location, and participants thereof input by a user; checking a database storing data regarding types of event in response to the information input by the user to determine a type of the event; retrieving information regarding items required for the type of event determined and generating a template including a list of what items to bring by the participants of the event; and sending the template to the participants of the event through wireless communication.