Here’s a 6-point summary of my “People Skills” talk.  The points are in pairs, two about negotiation, two about the “arrows of communication”, and two about mindset.

Identify interests
Generate options

Share your stories
Ask for their experiences

Don’t try to win the meeting
Test your assumptions

Note that there’s far more to people skills than these 6 points. The book Crucial Conversations has many more learnable skills. (About 25 in total).  The 6 I’ve listed here are the ones that seem particularly important to me, and which flow together (somewhat) in the structure of the talk I give about People Skills.