Connect with vegetarian and vegan friends from all over the world.
After having gone through the mental journey from unconscious flesh-eater to vegetarian and then vegan (and realising that it turns into a spiritual evolution as well), I realised some time back that, if ethics and morality are part of one's reasons for making the change, this really is an ultimate expression of love. Expanding one's love and compassion to all living things.
I try to tell curious people that although learning the horrifying truth about the lives our habits affect and making the connection is extremely saddening, uncomfortable and painful, they should really try to look at it as an opportunity to make an incredibly positive change in their lives. As most of us know, facing the truth means taking responsibility for our actions, and being more conscious of the atrocities we humans commit all the time does invite a lot of pain but also the potential for a lot of joy.
It's a GOOD thing and I feel it's important that this message be expressed to people that are on the edge of waking up. I usually recommend they watch www.earthlings.com and I know that there will likely be tears involved and that they might want to turn away and shut it out, so I try to reinforce the positive aspect in the hope that they will see the entire documentary through. Once that happens, there's usually no turning back and they start that special, absolutely essential journey for themselves and then spread this to others around them.