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Hello there, and welcome! 
I can't recommend any groups by name, I'm relatively new to the community as well but I will say, sometimes just hanging out around RP and observing will help you get a little more comfortable, help you get a feel for role play.
The Quicksand is always busy, you can watch and most encounters I've observed in there are fairly casual - it might be a place to get your feet wet? Server events are also really nice, lots of people you so you can quietly watch and they're always pretty fun!
Don't get discouraged, there are so many people on this server and so many groups that there is something for everyone, and people who are always willing to help! ^^

I can't recommend any groups by name, I'm relatively new to the community as well but I will say, sometimes just hanging out around RP and observing will help you get a little more comfortable, help you get a feel for role play.
The Quicksand is always busy, you can watch and most encounters I've observed in there are fairly casual - it might be a place to get your feet wet? Server events are also really nice, lots of people you so you can quietly watch and they're always pretty fun!
Don't get discouraged, there are so many people on this server and so many groups that there is something for everyone, and people who are always willing to help! ^^