Close your eyes for a second and imagine that people are actually watching how you live your life.
Now open your eyes and enter into the reality that: THEY ARE!
It matters to God how you live your life before men.
Colossians 4:5-6 Walk in wisdom toward them that are without, redeeming the time. Let your speech be alway with grace, seasoned with salt, that ye may know how ye ought to answer every man.