How is Nick constantly winning?



Finnick: Nick's a career hustler; reading people and their tells is a requirement if you want to be successful. Knowing Finn for as long as he has, Nick has known Finn's tells since before he first learned how to play poker.



Jack: The same way Finn knows how good or bad Jack's cards are. Jack is playing with his back to a window. It's easier for Finn to see his cards in the glass's reflection, but Nick's already admitted he likes the view, so seeing him glance to his right now and then doesn't earn a second thought.



Judy: Similar to Jack, but a little more complicated as Judy's ears depend on where Nick looks. Nick already knows whether or not Judy has a good hand depending on if her ears are up or down; she spent years learning to control her nose twitches because it was used by bullies against her, but nobody ever said anything about her ears. Depending on the positioning of Judy's ears, Nick looks at one of two pictures of him and Judy sitting on the shelves behind her. It's harder to make out exactly what she has compared to Jack, but he's easily passed off the long stares as thinking back to fun times, causing Judy to blush whenever she catches him looking behind her.