One of my college psychology professors taught us this definition: "When the happiness and well-being of another is essential to one's own happiness and well-being a state of love exists."
Author Gary Chapman says there are five basic ways people communicate love to one another. Those ways, which he calls Love Languages, are: speaking words of affirmation, spending quality time together, giving gifts, performing acts of service, and physical touch such as hugs, handshakes and pats on the back.
( http://www.5lovelanguages.com/ )
As we gather with friends and family during the holiday season we tend to use all five love languages.
If the incarnation shows God's love for us how can we show our love for God?