If you already had read rules of Bitcointalk, I recommend to check sticked threads on every board. There you will find main things that every forum user must know. As I understand, you want to participate in signature campaigns, so, you have to read this topic:
https://bitcointalk.org/index.php?topic=1684035.0
And offcourse, if you don't have knowledge about bitcoin, only way to gain it - read, read and. There is many stuff that you need to know in crypto world. Read forum, news websites, bitcoin wiki, blogs, watch youtube videos and etc.
Wtf It's not true!