Just jump in. Navigate the site. React and Comment according to the dictates of your conscience and convictions. Rely on your own wisdom and gut feelings when you Post, Share - and Befriend those whom you choose - and those who choose you. If you so desire, you can join one or more special interest groups - or start your own . . . If you get stuck - lead off with a question and see where the comments take you. Go for it. If there is something specific, I'm only a click away, I'll be glad to help, if I can.