Matthew 10:16-18
Jesus said that His followers will be hated for His name's sake.
But always remember to "love thine enemy".
Jesus spent time with sinners and publicans, because they were the ones in need.
Be with the unbelievers, socialize with them, regardless of what they believe, and do not judge them, so not to be judged by your Heavenly Father.
By letting them your life, and the way you live it, your light will be shone into the darkness. If you wish, you may also go in the ways of Evangelism, and seek and save the lost, the way Jesus did.