First, the categorical imperative is to organize or rather to facilitate other peoples’ self-organization. Catalyst is good, but organization is better.
Second, leadership must be temporary and subject to recall. The job of a good organizer, as it was often said in the civil rights movement, is to organize herself out of a job, not to become indispensable.
Third, protesters must subvert the media’s constant tendency toward metonymy — the designation of the whole by a part, the group by an individual. (Consider how bizarre it is, for instance, that we have “Martin Luther King Day” rather than “Civil Rights Movement Day.”) Spokespeople should regularly be rotated and when necessary, shot.
Fourth, the same warning applies to the relationship between a movement and individuals who participate as an organized bloc. I very much believe in the necessity of an organic revolutionary left, but groups can only claim authenticity if they give priority to building the struggle and keep no secret agenda from other participants.
Fifth, as we learned the hard way in the 1960s, consensual democracy is not identical to participatory democracy. For affinity groups and communes, consensus decision-making may work admirably, but for any large or long-term protest, some form of representative democracy is essential to allow the broadest and most equal participation. The devil, as always, is in the details: ensuring that any delegate can be recalled, formalizing rights of political minorities, guaranteeing affirmative representation, and so on.