Poker rules aren't that hard, after all, I've learned to play five-card poker at the age of 11 and even then it didn't seem like something complex. After a while, I tried taking part in poker tournaments, but they were mostly Texas Hold'em and I wasn't familiar with the rules. Even though in tournaments everything happens quickly and you have to think fast I got the hang of things after 3-4 games. The best way to learn something - is to learn it through practice, imo.
Hahaha, I am not scary them, but that is the fact that they need to know, so they don't feel bad if they are lost. If they can learn about poker better than other people, they will have a chance to bluff and win the game.
But I think that is hard for me. Maybe that is because I don't want to learn or know how to play the poker game. My friends who teach me about poker game tell me that I am not good at learning poker, so they suggest that I play simple gambling games that are not complicated to understand.