Nice samples here. Take those who suit you and talk to the passenger when you have the time to talk and only if you enjoy it. I remember "the good old days" where passenger where able to visit the flight deck. They often asked about the PA and they became closer to the crews. It depends where you fly then you can use the british form of Ladies and Gentleman, the Irish Folks, Boys and Girls and so on.... If You enjoy what you do, put that into your PA, that reflects thru to the passengers, smile
and the pax will feel it truly. Fly allways safe and land happy!.
NG