Hello hush_hush, and welcome to the forum.
A lot of people start by going to the Introductions section and starting a thread there to say hello.
Then perhaps once you had had a look around the place, maybe starting a reading blog in the Reading Lists / Blogs section and share what you've been reading and what you thought of what you've been reading.
There are also non book related sections where we chat about films, music, food ~ all that life enhancing stuff!