A system and method for identifying persons near a mobile device includes a wireless signaling system including an incoming wireless signal receiver, a device motion sensing system including at least a first sensor and a controller configured to determine whether the device is being moved in accordance with a predetermined gesture and to responsively enter a personnel data collection mode. In the personnel data collection mode, the device may transmit a query and receives an identification signal from at least one other device and identifies a user of the device based on the received identification signal. The predetermined gesture is a spinning gesture in an embodiment. In an embodiment, a thermal sensor is used to identify or enumerate personnel. The identification signal may be one of a Bluetooth ID and a WiFi ID.