Remember as you walk by that person on the sidewalk and your eyes meet, you smile and say, "How are you?" without really meaning it.
When you walk by that person on the street, or step into the elevator with a coworker.
When you are standing in line at the grocery store with people in front of you and behind you, and when you step up to the cashier to pay.
Remember when you go through the drive thru to pick up your lunch, when you wave to your neighbor as you pull into your driveway.
As you wait in line at the DMV or sit in a restaurant waiting for your dinner, on the bus, on a plane, or anywhere else you come into contact with other human beings.
Remember that the gate is small and the way is narrow for those who find eternal life (Matt 7:13-15 ). That most people you will come in contact with throughout the day are likely on the wide road to destruction.
So, just remember these three little words. Say them out loud, whisper them under your breath or say them silently in your mind as you glance into the eyes of other people. These words aren't really meant for them anyway, they're meant as a reminder for you, to convict, to remember and remind yourself to say something else, rather than what is said by your silence or your meaningless small talk or greetings that you don't really mean.
Quietly say to them, "go to hell" if you're not going to share the words of eternal life with them as you are commanded by the Lord. And be ready to explain to God one day, why you called Him Lord but refused to follow His commands (Luke 6:46, Rom 14:12 ).
It's been said that there are sins of commission and sins of omission. We're pretty familiar with the sins of commission - the things you do which you shouldn't, but the sins of omission are the things that you don't do which you should, such as obediently sharing the Gospel as every Christian is commanded (Matt 28:19-20, Mark 16:15, Acts 10:42 ).
If you consider yourself to be a Christian, you need to learn to share your faith. At least carry around a few Gospel tracts, learn to quickly share the hope within you (1 Peter 3:15 ). Get yourself equipped to share the Good News with others, Biblically.
Go to Way of the Master.com and learn what you need to do. If what you find there is unbiblical, then walk away from it. But if you find it backed up by Scripture, then you need to get into the battle.
If you are afraid to witness to others because they might be offended, try this. See if it is less offensive to go ahead and say to them, "go to hell" because that's what you're saying by keeping the knowledge of eternal life from them.