I recently participated in a very interesting conference call organized by a Buddhist organization, Dharma Voice for Animals, featuring Bruce Friedrich as a speaker on how to be an effective advocate for animals. For me the most valuable his points was that by being effective advocates, we multiply the effect we have in the world. As individual vegans, we save many animals, and the more we persuade others, the more we may influence policies and markets that have the potential to save many more animals. This is a link to his talk:
How to make the biggest impact in conversations? He recommended to have a truly interactive engagement by asking questions and staying empathetic when talking with non-vegans, using the Socratic method. Another participant shared this YouTube video by another activist on using the Socratic method.