Same trick again but this time with Library staff during one of our training sessions.

As I wasn't actually leading the session I set up the presenter with my Twitter account in the sidebar and once again people could comment or ask questions via the @reply feature.

Didn't work quite as well as the presenter wasn't engaging with it but a couple of people 'played' with comments and questions to each other. Still worked well at that level.

One snag using my own account from two different perspectives as it were: a couple of my followers wanted to know why I was talking to myself!