One bit of advice that I really took to heart from this creator (link below) is that not everyone in your social network is going to know what Kickstarter is, and sometimes you need to take that into account by directly messaging them an answering their questions.
I would also try to emphasize that their card will not be charged if you don't hit your goal, which means there is no risk!
Link to article: (
http://www.crowdcrux.com/what-no-one-te ... ou-launch/)
I think the art is very cool. Backed you at supporter tier.