Find a way to invite him.
I just learned about GOB.Com a new pro-liberty site that should be much better than Facebook...am in the process of getting signed up....I am sick and tired of communist websites that block, delete or limit our FREE SPEECH rights.
I don’t do Twitter or Facebook, so trying to contact him that way is out. I may see if I can track down an email address. As a couple of other people have said, it’s possible he may already be on FR.