I too have experienced this lately. Sometimes I feel like a big knob on a radio that people just turn off when I mention Jesus.
But, like Believer said, I'll just try to speak Jesus through my actions and morality. When my Christian friends ask me to a movie or to watch a TV program that is immoral, I kindly tell them that it isn't for me, that I don't think Jesus would approve of me doing this. It makes them think about what they are about to do.
This reaction also reminds me of Luke 21:17, "and you will be hated by all because of My name." Sometimes when these people turn me off about Jesus, I just walk away and cry for them. They don't even have any idea what they are throwing away and it hurts.
And it hurts me because Jesus is being rejected and I love Him so much. I want so much to tell people about Jesus and the love He has for all mankind. How much better and happier their lives would be if they trusted in Jesus instead of Satan.
Asecretchord, you are a precious child of God, keep your chin up and just keep trying. Luke 21:15, "for I will give you utterance and wisdom which none of your opponents will be able to resist or refute."
Your sister in Christ - ShieldFaith