Here's a start
Go to the casino and walk around like your trying to find the right table. But don't check out BlackJack, check out real gamblers. Look to see who has major money out and look at how they are dressed, how they act, what they say when they lose big. You need to look like what other gamblers in your area look like.
You need to look like you would have the money to lose, like you don't care that much. You need to be yourself, only adding the gambler look and style. If you are outgoing, work with that. If your shy, find a shy act that works well or act like a shy high roller you see around the casinos.
I always think it's better to avoid big chip towers. You should keep them in one big pile so if you sneek some in your pocket, they will never know. When they come around to note your stack it will be hard for them to tell.
Just keep your eyes open to see how other gamblers act and try to blend in. Every casino area has it's own look and some places like Vegas have many looks in one. It's best to look around your area because what might work here, might stand out there...