Hello, newbie of few words, welcome to Iwaku.
It's nice to meet you; I am Kitti-of-Lots-of-Words. Or Kitti, for short. Hahaha.
I'm dressed up this month for our super awesome Sci-Fi festival, which I'm sure you'll see lots of references to around the site!
Since you're new here, I have some links to help you out!
This is where you can sign up for the roleplays found in Modern, Scifi, Fantasy, and sometimes Mature. Generally, they will have you post a character sheet in their thread, a new sheet for each roleplay! You can also start signups for a roleplay of your own here.
This is where you can find jump in games, which typically have no sign up thread. You just start posting!
If you need help or have questions, please do ask.