Welcome to MO. I hope you have fun here and make plenty of friends. :)
Also just a few notes on how the site works fyi (since its not explained anywhere AFAIK). Unless someone actively views your wall, posts you make here will only show up on the feed of your friends. However posting directly on anothers wall, or replying to a wall comment will leave them a notification.
Posts that will show up on your feed will be those from your friends, and posts made in threads you have participated in or are otherwise following. So the site does encourage being social, both to see more posts from others, and to be noticed yourself.
Once again, welcome.
Well hello ^-^/