Hello friend!

I'm glad you're interested in joining us. Between Luca's and my summary posts, I think we've just about given all the information going on up to this point. Most recently in the game, my character Rizali, along with Luca's character Kaegan and Jess's character Cathal, have formed a party of sorts and are getting ready to cross Kingfisher Forest.
If you're meaning how to jump into an RP more generally, I've written a
How to Roleplay thread for CalRef-style RPs. It touches mostly upon how we approach and think about RPing here.
If you're instead meaning how to get started on
this RP in particular, then just start brainstorming a character and an introduction. Currently we have an illusion mage who has no combat skills (Riza), a swordsman who just recently realised he's capable of magic (Cathal), a forest sprite who hasn't revealed any particular abilities as of yet (Leeva), a young runaway who's half-decent with a shortsword (Cathal), and a hulking berserker with a massive
two-handed kora sword (Lyndh, who's an NPC). If you want to design a character around any party openings you see, I encourage it, or if you want to make a character who's similar to one that's already there, that's absolutely fine as well. I aim for people having fun far more than I aim for party balance.
Also if you're the character adoption type, you can take Lyndh. He's detailed in the second half of
this post. He was hired by Rizali in Coxarif, the nation's capital, as a bodyguard while they travelled west. He's revealed very little of his personality, so you'd have a mostly open book :)