Keep in mind that there are several variations of this game.
Another way to learn, after you sort of know the basic rules, is to go a senior center with a large Chinese population. First ask if you can just observe, because you want to learn. Then as you get to know the people there better, ask if someone is willing to teach you as you play along. Ask if there are beginners’ groups.
I understand that it is a social game, so getting to know the people is part of the fun.