Just read any and all threads that interest you, lots of knowledge to be soaked up here.
Also, the sticky posts in each section are almost all must-reads before posting, plus they're also full of interesting and useful info. Lastly, before you post a question, just run a search and see if you can't find the answer on here already, as I've found out, nearly everything I wanted to ask was already asked, I just needed to look it up!
So hopefully you find what you're looking for, and become acquainted with some of the gloriously beautiful and interesting individuals here on STP.