The forum is full of people of different diversity, how do I learn things about bitcoin and also engage with everyone intellectualy.
I will be glad if I hear your opinions.
For starter, you seems to have good command of English, (it's not my first language) so I guess that will be a good start for you. And if you are not comfortable though, you might look for your local boards and then you can start it from there.
You can also start by reading the rules here,
Unofficial list of (official) Bitcointalk.org rules, guidelines, FAQ. As others have said, used the search function first as the questions that you may be thinking of asking has been asked before,
Here are a couple of threads that might help you out.