I never learned. I got close to it but... no go. In the early 90s, my sister's neighbor gave her a bunch of duplicates because they were losing interest in the game. Instead of her being generous enough to let me borrow some of her cards to teach me, she nagged me into buying my own. Portal was out at the time so I got some from that set.

We sat down and started to play while she was teaching me. Phone rang and she got called away. That was it. She never had any interest at all in playing again. It was that one little unfinished session... Annoys the heck out of me. My cards went into a binder and it's been stuffed away somewhere. .. Maybe even in the attic. Who knows.