First its very hard, almost impossible to know all written and non written rules and obey them all even if you wanted it badly.
Second answer is that, just post in normal way, help others, ask questions, read and you won't generally be punished for anything because you not doing anything bad.
Is there a list of rules? Do you have a link to that?
Here is (in my opinion) the best unofficial list of Bitcointalk rules.
https://bitcointalksearch.org/topic/unofficial-list-of-official-bitcointalkorg-rules-guidelines-faq-703657
If you want to know more about account activity, ranks and badges - you can read about that here:
https://bitcointalksearch.org/topic/forum-rankspositionsbadges-what-do-those-shiny-coins-under-my-name-mean-178608