Identifying other 2p2ers

[Mr Rick]

I have this problem too. Plus at 51 I look fairly stupid saying "sup bro" to everyone I meet.

And I have no idea what the countersign is. Is it "sup bro" as well? Wouldn't anybody who is under 30 answer that anyway?

I typically just ask somebody who plays like they are thinking if they know 2+2. I try to do it quietly but one time a guy from across the table heard and said "2+2?, yeah I do that" fairly loud and it spawned a conversation in which more than half the table confessed to participating. And the one guy who was playing very poorly started mocking 2+2.