For the category on the website of the gods, it has all of the things the other gods like. For example their incense, runes, and things that are personal to them. What does Father Satan enjoy, so I can decorate my altar and celebrate him?

If I become a satanist, can I still hang out with my friend at her church? I don't participate in any of the events nor do I agree with her church, but it's like the only time we can hang out together after school. And I'd feel bad if I reject her all the time.