[Siren]

The first tip for newbies that comes to mind is to fill out your profile. Things like:

• Picking an avatar (it doesn't have to be kinky and it doesn't have to be a photo of you)
• Filling out the "about me" section on your profile
• Creating a signature
• Adding a blog post or two with more info about you as a person or about your kinks
• Answering some truth threads, whether kinky or vanilla (like this
  or this or this or this or this)
• Posting a list of your likes and limits (if you want to take dares/tasks or are looking for play partners)

A filled out profile will make your account a lot more recognisable and allows people to find out a little about you before approaching you. It'll also help you get taken seriously as someone who wants to be a member of the site (in whatever capacity) rather than just a lurker.