@sarahsayjay, the "introduceyourself" post is so very important. You actually have a chance as a lowly "27" to make a few hundred dollars if you really put some effort into that post. I screwed my own, twice.
Have someone take a great picture of you, holding a little sign that states your name and the date. Use plenty of pictures showing you having a good time or enjoying your hobbies.
Tell the community why you are interesting and what you are planning to bring to the platform. Most importantly, keep it upbeat. You can advance with this one post as much as you might with your next 100, so make sure it's everything you want it to be.
Sorry to step on your post @whatageek.
No no, this is great advice and the more people helping the better :)