Neighbors are like family. We don't want to offend them unnecessarily, because we have to live with them. We need to be rich in good works toward all men, but especially our neighbors. The Bible reveals that this is a legitimate means of evangelism. Jesus said, "Let your light so shine before men, that they may see your good works, and glorify your Father which is in heaven" (Matthew 5:16).
It is God's will that "with well doing you may put to silence the ignorance of foolish men" (1 Peter 2:15).
Sinners may disagree with what you believe, but seeing your good works makes them think, "I don't believe what he believes, but he sure does. He certainly is sincere in his faith."
A friendly wave, a gift for no reason, fresh-baked goods, etc., can pave the way for evangelism. Offer to mow your neighbors lawn or help do some painting. Volunteer to pick up their mail and newspapers while they're on vacation. Compliment them on their landscaping and ask for gardening tips. Invite them over for a barbecue or dessert. Pray for an opportunity to share the gospel, and be prepared for it when it comes.