Mary decides to Follow Jesus

After Mary saw Jesus' face she decided she MUST follow.  What's interesting here is that when I think of modern day evangelism we made it so difficult.  We have formulas and programs and plans.  We've finally figured out that relationship is important.  When you look at what Jesus did we should get a major clue.  What did Jesus say to Peter in Matthew 4:19?  or to Matthew in Matthew 9:9?  Why do we make it so hard to point others to Jesus?