First, perhaps a bit of clarification: When you sign up for the Lounge Club, you don't receive physical passes. You receive a membership card that looks like a credit card, with your name, account number and expiration date embossed on it.

My wife and I have used our cards for a total of 3 admissions so far and the admission policy has been consistent. The member whose name is on the card gives the card to the attendant at the front desk, who then swipes the card. The attendant's machine then prints out a slip of paper similar to a credit card receipt which the member must sign, acknowledging the admission(s). That's it.

No physical pass involved. But the Club member whose name is on the membership card must sign a receipt, so I don't think it's a good idea to give your card to a friend. We haven't been asked for ID or boarding passes, but you never know.

Sorry for the long-winded response. I hope it helps.