Anita Finkle

Here's how I interpreted it:

Soft skills = people skills + workplace behaviors

People skills and workplace behaviors do overlap some, but I think "people skills" refers to interactions with others whereas "workplace behaviors" refers more to dependability, common sense, positive attitude, and other (non-technical) personal attributes in the workplace.  And I agree that many of these "workplace behaviors" affect "people skills" so the distinction is not always clear or even relevant.