Again, the next day, John stood with two of his disciples. And looking at Jesus as He walked, he said, “Behold the Lamb of God!” The two disciples heard him speak, and they followed Jesus. Then Jesus turned, and seeing them following, said to them, “What do you seek?” They said to Him, “Rabbi” (which is to say, when translated, Teacher), “where are You staying?” He said to them, “Come and see.” They came and saw where He was staying, and remained with Him that day (now it was about the tenth hour).
These two men, Andrew and John, as well as other disciples of Jesus, were first disciples of John the Baptist. They had already been brought to some realization of their need of repentance and that the coming of the Messiah was at hand. Therefore, they were hungry to learn about God and His kingdom.
This is what you and I must do. We must be alert at all times to look for people who are eager to hear truth. That doesn’t mean they will readily accept what you and I say, but they are willing to hear us out, and once hearing us come to believe what we are telling them. The way you do this is by living by the Spirit modeling the life of Christ. Many people profess to be Christians but your lifestyle had better be different than most of professing Christendom. Let people see that Christianity is much different than they have been deceived into believing. If you do not live like a biblical Christian, then please don’t tell anyone you are a Christian. Repent and become a disciple yourself.