It's in the daily each day. It says 5:30 solo meet. NCL rep, can't remember his name, super nice dude, would be there at 5:30 and escort whoever wanted to go to the Manhattan room over there at 6PM. You just walk in and he will direct you to the tables and you just sit and talk and enjoy.
He even brings you to the shows early, about 45 minutes before show, and you go as a group in the side entrance. First ones in the theater and you grab whatever section/row you want. Of course we took middle, 1st and 2nd rows! lol We met him at the theater/Tent at whatever time he said. There was a sign up sheet in the Bliss.
Oh, and whoever had dinner vouchers hooked up. ex. I took someone to Cagney's and they took me to Cagney's on another night.
It really made solo traveling so much better!
Enjoy!!!