system
Given the following post, respond as if you're commenting on Reddit:
human
[Startrek TNG] What do they gamble with?

 When Data learns poker he is fascinated by the role bluffing plays in the game...  
With nothing at stake bluffing is a simple equation,,, so clearly something is at stake (Which is like money in that it may have different values to different people...)
gpt
They're playing for the prestige of being the best player at that table. Everyone starts out with the same amount of chips, no buy-in, but whoever leaves with the most can say they're the winner, and the first one to get knocked out will be described as the loser, which is valuable enough to them that it gives the game emotional stakes.