In a method of observing users of communication devices, a central computer system recognizes a first user associated with a first communication device and a second user associated with a second communication device. The central computer system observes a communication between the first communication device and the second communication device, wherein at least a portion of the communication is an audible communication. The central computer system relays the communication between the first communication device and the second communication device. The central computer system identifies features of the communication and makes the features available for decision making purposes.