"And charity suffereth long, and is kind..." (Moroni 7:45).
A person with charity is very kind. Seeing one person being kind to another is beautiful and lifts the spirits of both parties and of anyone observing. I've always enjoyed the Liberty Mutual commercials that show people helping others because they recently observed someone serve someone else. I really think the most beautiful thing in the world is seeing one person helping another.
Elder Joseph B. Wirthlin taught that "kindness is the essence of greatness and the fundamental characteristic of the noblest men and women I have known."
One of the noblest people I have known is my mother. She serves everyone around her almost constantly and finds joy in serving. She is proactively kind - searching for opportunities to help instead of only being kind as the need arises. I'm very grateful for her example.
If we reflect back on our day, we can see that a great many people have been kind to us. It may be as simple as a smile or as great as sacrificing hours of time to help us. We often overlook these many acts of service (at least I do). Each act is another message to us from a loving Heavenly Father, reminding us that He loves us.