~snip
Memorizing the cards will not easy to do, especially if a person that can not memorize them. Not many people can learn about poker, but they can learn more details about the game. They can also learn about how to bluff the opponent to have a chance to win. But that will be difficult if their opponent will have more skills than them because their chance to win will not be bigger. But I think if they can often to playing poker game, sooner or later, they can try to bluff and memorize the card of the opponent
It isn't easy but if you put your mind into something, there is a high chance that you can do it. Bluffing is an easy skill to learn but the problem is how can you make yourself look convincing, you have to look like you don't know a thing about bluffing and at the same time know about bluffing without the opponent knowing the latter.