Scenario #1

Ralph: James, meet Mary. She works at Telus.
Mary: Nice to meet you James.
James: Telus eh? Do you know John, he working in accounting...a VP of some big department.
Mary: Nope, don't know John.
James: Oh really, well we go way back.

Scenario #2
Kelly: Hey John, I saw that you are connected to James who went to St. Peter's HS. I saw him on your facebook.
John: Not sure who you are talking about. I connect anyone who sends me an invite.

Friends vs. Acquaintances vs. People