Be prepared
Since I mentioned the type of evangelization that's not a good way to evangelize, let's talk about HOW to evangelize.
So, you've probably had groups like Jehovah's Witness or Mormons (LDS) come to your door. Depending on the religious demographics of your area, you may have even had some fundamentalist Protestants. These people should be commended for their sincerity in their zeal for wanting to share their beliefs.
However, and I know how unpopular, at least in religiously tolerant countries, these people are wrong. It's okay to say that.
So, how should we share the gospel?
"That which I tell you in the dark, speak ye in the light: and that which you hear in the ear, preach you upon the housetops" (Matthew 10:27)
Well, one way is the preach on rooftops. But, if you live in a skyscraper, I don't think that'd be the best idea.
Obviously, I think that there are times when this is the correct thing to do. But, I think we need to be preaching the Word of God, JOYFULLY.
I also think, being overly agressive is not the way to go. This is why I said that's NOT the way to evangelize. So, how does scripture say to evangelize? Good question, but, first, I want to give some scripture on preaching. Romans 10:8, "But what saith the scripture? The word is nigh thee, even in thy mouth, and in thy heart. This is the word of faith, which we preach".
"Preach the word: be instant in season: reprove, entreat, reprove, entreat, rebuke in all patience and doctrine". (2 Timothy 4:2).
So, what are we supposed to do? What are we supposed to preach? Glad you asked:
"Go therefore, teach ye all nations; baptizing them in the name of the Father, and of the Son, and of the Holy Ghost, teaching them to observe all things I have commanded you: and behold, I am with you all days, even to the consummation of the world". (Matthew 28:19-20). And this is what you preach. Don't make the Good news, bad news.
If you are still unsure of how to preach, here's a little help from our friends at the Wonderful World of Benjamin Cello.
*All verses are from the Douay Rheims version.
https://watch.formed.org/benjamin-cello/season:2/videos/episode-4-preach-the-word
Preach the word!