This is Mark Hall, the lead singer with Casting Crowns, one of my favorite Christian music groups. He’s talking about sharing Jesus with your friends, which is something every Christian needs to do.
One of the things he emphasizes is the need to wait for the Holy Spirit to make the opening. I believe, based on my own experiences, that when the Holy Spirit wants to use you, He will give you the words.
Catholics tend to be slow to do this and other traditions sometimes overdo it to the point of becoming a nuisance. We need to trust God to lead us. The most important witness for Christ is when we follow Him with our lives. Without that, nothing we say will matter.