That's one of my own blog posts, this one connecting scientific discoveries to love.
But one important thing I didn't mention in that post is about speaking Kind Words.
Rabbi Akiva held that a very important cornerstone of the Torah is "Love Thy Neighbor As Thyself" -- which is kind of dated in this current era of self-hatred. But it's really a touchstone by which to judge your emotional reactions to other people's behaviors, and the tendency to want to FORCE them to behave (i.e. "there ought to be a law")
The speaking of words is just about the most powerful thing a human being can do.
Selecting your vocabulary for accuracy, distinguishing between fact and opinion, using speech to elevate spiritual awareness rather than bludgeon and vilify -- speaking with care, meaning what you say with your whole heart, all of that is vitally important. Nothing else can come to you until you prioritize the issue of your own speech in your behavior value system.
And LISTENING with all your whole heart is likewise right at the top of the scale.
Love your neighbor as yourself -- LISTEN TO THEIR PAIN and PLEASURE. Hear what's going on inside others. Let it resonate within you. Respond with kind words because your whole heart vibrates with kindness.
OK, well, it's a goal to achieve not necessarily a trait you're born with. It'll take some work. But every bit of effort will be rewarded -- according to the science cited in this blog entry.