I have a question or a few regarding Noahidism, Conservative Judaism, and Orthodox. I know one of those technically is not judaism so feel free to ignore that word.
So are there any mitvot noahides/gentiles are not supposed to perform?
What actions can hold one liable to karet? I have heard there are about thirty. What about actions that are punished with the death penalty or excommunication? What about beliefs or heresy?
What Mitzvot should someone try to begin practicing first?