Many Catholics are baffled about how to share the faith, but the good news is--it's not complicated. Jesus didn't have a twitter account, followers on Facebook, or a livestream app, though he would have made good use of those. He started with one person, then another, then a handful--and his mission grew. Karen Edmisten's own journey from atheism to Catholicism followed a similar low-key, one-on-one model and frames her lively advice. As she moves...