Also known as the Roman Road, the Romans Road is God's plan of salvation set forth in Paul's letter to the Roman Church. There is more than one version of this, with some including other parts of the Book of Romans, and others leaving out Romans 11:36, and that's absolutely fine as it's all Scripture. You might want to keep it simple however. While not as easy to remember as the ABC's, The Romans Road gives God's plan of salvation effectively to a non-Christian.
Romans 3:23 - "For all have sinned and fall short of the glory of God."
Pretty self-explanatory. All of us have failed God, or sinned, at some point in our lives.
Romans 5:8 - "But God demonstrates His love toward us, in that, while we were still sinners, Christ died for us."
Because of His love the Father sent the Son to die and pay the penalty for our sin, even though because of that sin we don't deserve it.
Romans 6:23 - "But the wages of sin is death, but the gift of God is eternal life in Christ Jesus our Lord."
We get paid wages when we work because that's what we've earned right? Same thing here. We earn death because of our sin. We can have the free gift of eternal life only through Jesus Christ.
Roman 10:9-10 - "That if you confess with your mouth, "Jesus is Lord," and believe in your heart that God raised Him from the dead, you will be saved."
Make a public confession that Jesus Christ is your Lord and Saviour and believe in your heart that He died on the cross and was raised again three days later, then you will be saved!
Romans 10:13 - "For whoever will call upon the name of the Lord will be saved."
Call on the Lord and ask for His forgiveness and you will be saved.
Romans 11:36 - "For from Him and through Him and to Him are all things. To Him be the glory forever! Amen."
John 1:1 also tells us that Jesus was here in the beginning, and He still is. He is worthy of our praise!
For any plan of salvation to be effective you need to be in the Bible, God's Word, daily. You can't teach something you don't know. If someone asks you a question you don't know the answer to, that's okay. Find out the answer and get back to them. The important thing is to tell them the difference Christ has made in your life. Lead them through the sinner's prayer below, an example of which is this from sbc.net (keeping in mind that the prayer itself isn't what saves you):
"Lord Jesus, I know that I am a sinner, and that I do not deserve eternal life. But, I believe you died and rose from the grave to purchase a place in Heaven for me. Jesus come into my life, take control of my life, forgive my sins and save me. I am now placing my trust in you alone for my salvation and I accept your free gift of eternal life."
Your Pastor or another believer who has been in the faith for a reasonable amount of time can counsel you, and please remember that new believers need to be discipled. Get them into a good, Christ-centered church, and help them through the trials that always come to new believers. Satan will almost certainly begin to attack them, and they can easily be led into "diverse and strange doctrines." God bless you.