[cotega]

One other trick that someone gave me once when I was wandering all over the stage was to put on the ground something (maybe a dry erase marker) that I could put a foot on. For some reason, that really helps to keep you in one place and you don't even really notice the object while you are presenting.

[skmurphy]

It's OK to walk, it releases nervous energy. Use a short walk to introduce a pause in your talk. Only speak when you are looking at someone and you will speak conversationally.