Greetings, new person. Welcome to the wonderful world of Iwaku; where roles are played, and people generally aren't awful.
If you're looking to Roleplay, there are a couple of avenues to take. You can either: Set up a Request thread, you can start looking at other people's request threads, or you can browse the Forum lists for Roleplays that catch your fancy. There are sections dedicated to Group Roleplays, One-on-Ones, or some more Risque content in the Redstar Lounge.
Enjoy your time here, and feel free to pester the Mods; it is their job, after all.
Also, you should totes look up the Discord channel, where lots of things happen. Talk to a Site Admin about that, as well.