By and large, the world despises Christians. We live life under a microscope. The world waits like starving vultures for a Christian to stumble and fall so they can point them out and say "AHA! SEE! THEY'RE NOT PERFECT! I THOUGHT THEY WERE A CHRISTIAN!?" It's a realization we must understand and be aware of each and every day.
Your life is the only Bible some people will ever read. They may never enter the door of a church. They may never read the scriptures. But they might see you, and the way you live your life, and be moved.
Alternatively, the way you live your life could push someone away from the Lord for ever. That's a convicting thought.
Commit to live your life in such a way that it always points to the Lord!