I don't own a Nexus yet but confidently expect my wife to buy me one for Christmas, and hope to prepare myself by asking questions on the forum.
My main hobby is designing ebooks, and one of the reasons for getting a Nexus is to be able to test the ebooks on a tablet.
Another hobby is listening to music, and I hope to learn how to side load some of the hundreds of CDs I have so as to be able to listen to them on the Nexus.
For reasons good or bad I hope to be able to avoid GMail since I value my privacy, so I'll be asking questions about using my current email account.
And I'm sure I'll find other questions to ask, and (I hope) be able to answer.