When speaking in public, it is always best to communicate a clear set of
ground rules near the beginning of your public speaking engagement. For instance,
if you do not want questions until the end of your program, state that up front
and get agreement from the group.
If comments from the audience are allowed, ask that they be kept to a certain
amount of time (like 30 seconds or less). Getting everyone to agree to your speaking
in the beginning puts enormous peer pressure on an individual violating any of