Those people in the casinos who pester you in fact are called 'paa zai', you can also say they're swindlers. They will use whatever methods they can to deceive you to fall into their trap, in the end they want you to borrow their money.
嗰啲喺賭場度煩你嘅人其實係叫扒仔，亦都可以話係老千，佢哋會用盡方法去氹你落叠，最後要你借佢哋嘅錢。