What is Catholicism and how do I become Catholic?

Catholicism is the true church of Jesus Christ. It is pure Christianity. All other churches are just watered down versions. To become Catholic, you need to take RCIA classes to learn the basics of the Catholic faith. Those are usually offered in the Fall and you complete them around Easter and you take your first communion at the Easter Mass and that's when you're confirmed in the Catholic Church. Yes, you can attend Mass but don't take communion, just cross your arms and ask the priest for a blessing when you get to him.