Everyone needs to persuade others by the force of their ideas and the exemplary character of their actions, not by brute force. Leaders of mass organizations need to be sensitive to the fact that in a truly democratic organization, every voice must be heard. It is not appropriate to silence real or imagined cadre members because of a presupposition that the message will be a repeat performance or that a cadre is just parroting the party line. Either the ideas are persuasive or they are not. Activists in cadre organizations get to proselytize and even recruit, as long as they do the work, and abide by the principles of unity agreed to by the mass organization.
Groups get to set the rules for time, place, and manner.
The usual time is before and after the main event. Be respectful of everyone. Do not act martyred. Use positive humor whenever possible and often. Get a life, have a life, live a life-as fully and joyously as imaginable.