If you come to the forum solely because of Bounty, you wouldn't go far, in short you will end up spamming your post history with proof of Authentication, Twitter and Facebook links and at the end of the day, you will not learn a single thing in the Forum, all you will be doing is visiting Bounty board, you wouldn't learn anything tangible about Bitcoin not talk more of the forum it's self. It's a good thing that you asked a question so you don't end up like your friend who invited you to the forum.

My advice is this, spend more time in the Forum to understand how the forum works, learn more about Bitcoin and expand your knowledge outside the forum, when you utilize these resources, you will understand Bitcoin better and how to relate will not be a problem to you and how to respond here. Don't hard yourself on it, just be natural and if indeed you are willing to learn, you will grasp basics in short time.