When it comes to hitting the doors and dealing directly with the people on the other side, when you rap your knuckles on the wood, you need to remember that you are employing a very powerful weapon effectively and responsively. Meeting people directly is persuasive, so know what you are doing.
Doorknocking to build an organization is not simply canvassing.
Canvassing is a valuable, but abbreviated way to distribute a message with the specific result of either moving a vote or producing a donation. The response to the visit is highly structured to achieve maximum impact in these directions.
There is certainly a structure to a home visit on the doors, but at its core, listening is still the primary requirement. The outcome is uncertain and exciting. The visiting team or organizer needs to be able to hear the issues and interests of the person on the other side of the exchange in order to be able to respond effectively about whether the organization and collective action is possible. At the same time, the organizing team needs to communicate effectively what the organization is and, equally important, what it is not, who should belong, and who should not.