On the question of how was it practiced, the question may have implied, did they kiss on the lips or on the cheek? It's not clear from those quotations. Now, I know from being in the Middle East and being around Middle Easterners, I've seen them greet one another. I've seen men, anyway, greet one another with a kiss, and it's on the cheek. I've never seen two Arab men or men from the Middle East kissing each other on the lips.
I don't think that is practiced at all among them, but they do still greet with a kiss on the cheek, members of the same sex. Join us in earnestly contending for the faith that was once for all delivered to the saints.