For Remote Demos (as well as face-to-face situations) I strongly recommend that you go around the virtual room and ask three questions, at the start of any demo meeting:
1. What is your name?
2. What is your job title?
3. What would you like to accomplish in our session today?
In addition, for Remote Demos, a nice touch is to also ask of each named participant on the WebEx or GoToMeeting (or other online tool) participants’ list, “Anyone else in the room with you?” This helps to reduce the possibility that participants are undiscovered or otherwise hiding in the virtual corners of the virtual room…!