Hi there and Welcome to YWS!
I'm sure you'll love it and everyone is friendly here, so they won't chew your ears off if you do something unusual, but I do have some suggestions for getting started:
-What kind of writing do you do? (poetry, fantasy fiction, play scripts etc)- But before you post some of your work, you have to review at least two other pieces. Just browse through the forums index until you find something that interests you, and it's easy after that!
Once you've done the reviews, you can post some of your own stories/poems/scripts/lyrics etc. I'll be sure to come read it if you do -Make some friends- I would suggest making a topic in the Community forums about yourself (favourite colour, hobbies, fave movies etc) so that you can find people with similar interests. Then you can request to be their friend.
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So yeah. That's basically all I have to say, but PM me if you have any questions and I'll answer them as best I can.
Yours truly,
.:Ayra:.