Farmgirl, I hope you will volunteer to be discussion leader. I have done two book recently and feel that it is unfair for me to do another so soon.
All you have to do is post occasionally to keep the momentum of discussion flowing. People like to have their post acknowledged, so if no one comments on a new post, especially from a person new to BookTalk, then just make a brief comment on what they said. That's all there is to being a discussion leader.
I will support your efforts if you will volunteer.