To create a private table:
From the main Lobby, tap a game (Blackjack, Texas Hold'Em, virtual Slots, etc.).
In the game's Lobby, tap the table-type button. It may be labeled Public, Private, or Friends, depending on what you played last.
In the drop-down menu, select Private Room.
Tap the game you'd like to play.
To invite friends to join you at the private table:
Once you're in the game, tap the + icon next to an empty seat.
Tap the friends you'd like to invite.
Tap the Finished button.