What does Love Mean? 1 John 4:7  NIV
  
  Beloved, let us love one another, for love is from God, and whoever
  loves has been born of God and knows God.


Whoever loves has been born of God? I'm pretty confident that the majority of people, religious or not, would argue that they know how to Love and that they show their love for people on a daily basis.

So what does Love mean to God?
It would be best here to start from how love is defined in 1 John itself.

In the gospel we have the ultimate display of love. We hate God, and yet God loves us so much that he sent his Son to die for us. In 4:9-11:


  In this the love of God was made manifest among us, that God sent his
  only Son into the world, so that we might live through him. In this is
  love, not that we have loved God but that he loved us and sent his Son
  to be the propitiation for our sins. Beloved, if God so loved us, we
  also ought to love one another.


There's a similar verse in Rom 5:6-10 which raises the point that people would hardly even die for a good/righteous person, let alone sinners.


  For while we were still weak, at the right time Christ died for the
  ungodly. For one will scarcely die for a righteous person--though
  perhaps for a good person one would dare even to die-- but God shows
  his love for us in that while we were still sinners, Christ died for
  us. Since, therefore, we have now been justified by his blood, much
  more shall we be saved by him from the wrath of God. For if while we
  were enemies we were reconciled to God by the death of his Son, much
  more, now that we are reconciled, shall we be saved by his life.


So this is the kind of love we are to practise. You may say that Christians and non-Christians alike practise love on a daily basis. But often it stops where it becomes difficult and you must love someone who does not love you, or where you've been offended and you must forgive. Generally speaking, I think the world's standard of love today is to love as long as it feels good or where we get something back.

But this is not to say that Christians always truly love. In reality I think we often fail. Otherwise, 1 John would not need to teach and exhort his readers: 'let us love' (4:7). But the difference for Christians is that we have a reason to love others, even when it is not easy, because God loved us first. If you don't, then it is likely because you don't appreciate what God has done for us (Mat 18:23-35). To learn to love we need to begin with and continue in the gospel. 

See also: Eph 5:1-2. Phil 2:1-8. 1 Pet 2:21-25.