So, you have just led someone to the life changing decision to follow Christ. Now What?
"Similar to parents of newborn babies, we have the responsibility as spiritual parents to help care for spiritual “newborns” and help them adjust to the world. Just as Jesus tells Peter to feed and care for the flock that He will entrust to Peter, we ought to also prepare ourselves to be able to care for those who God will entrust us with (John 21).
The follow-up process includes a combination of giving direction and affection. We not only need to help them understand the gospel and the plans God has for them but we also need to care for them in the same way as Paul guides and cares for the Thessalonians (1 Thessalonians 2:7–8).
It’s important that we take the lead in helping shape their values and convictions as Christ followers. This tool provides a general list of topics to discuss with new Christians."
-- Via Nations
Here is a great resource from VIA Nations that can help guide you through a general list of topics that you can use to start conversations with new Christians and show them how to start their walk with Christ.