Psychologically preparing for upcoming events can be a difficult task, particularly when switching social contexts, e.g., from office work to a family event. To help with such transitions, the audio priming system uses pre-recorded audio messages to psychologically prepare a person for an upcoming event. In this system, audio priming is being used to prepare a person's state of mind to improve one's sociability in the upcoming social context. Keywords Auditory user interfaces, auditory priming, event priming, preparation, context-aware, mobile ACM Classification Keywords H5.m. Information interfaces and presentation (e.g., HCI): Miscellaneous.