The invention provides a system for generating guest-specific service suggestions for a guest within a facility such as a hospitality facility. The system comprises a location device carried or worn by the guest within the facility; one or more location detecting devices arranged at the facility, the location detecting devices being arranged to detect the location device carried or worn by the guest, and to communicate one or more location detection signals to a computer implemented analytic module; wherein the analytic module is configured to determine location data for the location device carried or worn by the guest and, based on said location data and/or data from a person attribute database, predict a behavior of the guest from at least said location data and communicate behavior information to one or more service devices.