Many Leaders Overlook This Simple Strategy to Make People Like You — But It Works. Just Ask My Wife. It's easy and creates all kinds of opportunities.

How responsive are you — to friends, colleagues, and even strangers?

Now, be honest: Have you ever really thought about that? You should.

"I find responsiveness to be one of the qualities I value most in people, and some of the best leaders and people I know are responsive," the pop artist Artie Sandstone recently wrote me. "On the flip side, so many people I love and respect seem to place responsiveness on a lower level of importance. Why? It requires little talent and adds so much value."