How should Christians act toward non-Christians? How should Christians act toward non-Christians?

One example I have found is 2 Corinthians 6:14 [KJV].


  Be ye not unequally yoked together with unbelievers: for what
  fellowship hath righteousness with unrighteousness? and what communion
  hath light with darkness?


I believe this is saying not to marry non-Christians.

Are there any other instructions on how to behave towards non-Christians in the Bible?
They are our neighbors and we should love them as ourselves.


  John 13:34-35 (NIV)   
  
  &nbsp;&nbsp; 34  “A new command I give you: Love one another. As I have loved you, so you must love one another. 35  By this everyone will know that you are my disciples, if you love one another.” 


If it turns out that they are our enemies then we should love them all them more.


  Matthew 5:43-44 (NIV)
  &nbsp;&nbsp;&nbsp; 43  “You have heard that it was said, ‘Love your neighbor and hate your enemy.’ 44  But I tell you, love your enemies and pray for those who persecute you,