First, LinkedIn is NOT a social network. At a recent workshop on blogging, hosted by VCCF (where I serve on the faculty), I was asked my thoughts on LinkedIn as a social network.
This video includes my answer plus additional ideas on true engagement and why likes are not always likes.
Workshop Video: 2:55 on LinkedIn
Video below or follow this link for some additional tips.[youtube https://www.youtube.com/watch?v=811B-NpjtjE]