Welcome aboard! Obey the rules, watch, listen, get involved, learn. This place can be a ball as well as a ready source of knowledge on a vast array of topics. Or it can be hell if you're just here to one-liner your way to the classifieds.
Word of warning, there are times that some people forget that they too were once new to this. Don't be afraid to ask, but sometimes a thick skin is needed. I have been using sites like this for nearly 20 years and every now and then I have to put on my "thick skin".
Again welcome sit back and enjoy, and don't be afraid to be one of the group!