Here’s a Prayer Vigil & I don’t see any of the men popping their head vestments off at any time.
http://www.youtube.com/watch?v=y4VjKXRlrTw&mode=related&search=Christian%20Prayer%20Orthodox%20Greek%20Egyptian%20Coptic%20Holy%20Land%20arabic
based on the link these are copts (who are not in communion with the Orthodox church)