As an anarchist, I answer this just about the same way I answer most questions. Through consensus of those involved, the form that takes is going to be different for each region, community, et cetera. Those that make up society need to have some way of making collective decisions, but it doesn’t need to be a state to achieve that. States are new, governing is not. I favor consensus democracy, but it’s by no means the only method. But questions like this are a double edged sword, they’re vital to explaining left libertarianism, but they’re also proof of how far we have to go before people understand even the basics of it. Stateless does not mean ungoverned, just as anarchism does not mean chaos. It’s simple a governing by the people. If we cannot be trusted to govern ourselves how in the hell do we think this is a tenable system, in which we choose individuals to govern us?