AYYYY!!!
I'm new, too! I can tell you what I've learned!
First, don't be afraid to mess up. People are understanding.
Second, make connections. Find open channels to rp in or find characters that mesh with yours and ask people to rp with you with those characters.
Third, participate in OOC threads, all my current friends on here I first saw in random threads.
Fourth, remember to learn about powerplay before doing an active/fighting RP. (I made the mistake of not, but still, the person was understanding)
Fifth, be patient with others. Even though they might not respond immediately (or even in a few days), they still have likely seen and want to respond to your comment.
Sixth, be respectful, remember to sometimes be a side character and not always the main character.
I think that's all I have to say, as I've only been on for a little under a month.
Have fun and be sure to vm (visitor message) me if you want to RP sometime!

@
Iceclaw22