For I am not ashamed of the gospel, because it is the power of God that brings salvation to everyone who believes.
Have you ever been embarassed to share your faith with someone who doesn't know the Lord? I mean, we all have at times. Not because we are ashamed, but because we are nervous about what they might think of us.
We need to ask the Lord for courage and the desire to witness. God calls us to tell others about Him. Why wouldn't we want to share ETERNAL LIFE with them??? It's the GREATEST thing that's ever happened to US!
We sometimes can make salvation so difficult, but if the Lord says "Believe on me and you will be saved," he MEANS it.
it's that simple.
I encourage you to NEVER miss the opportunity the Lord gives you to witness to others. It could be there only time they ever hear the gospel. I guarentee, they will remember what you said even if there is no instant "reaction" or change.