For the public audiences (Wednesdays) you just show up at St. Peter's Square. In the first year of your marriage, if you're Catholic, you're entitled to Sposi Novelli, where you get to sit in a special section & line up to get a personal blessing & kiss his ring. Steve & I did it. Freepmail me for details if you want them.
I, John, am the one who heard and saw these things.
And when I had heard and seen them,
I fell down to worship at the feet of the angel
who had been showing them to me.
But he said to me, "Do not do it! I am
a fellow servant with you and with
your brothers the prophets and
of all who keep the words of this book.
Worship God!"
Revelation 22:8-9
Actually, you need to get tickets to get in through security check. With Benedict, the General Audiences are packed, you'll need to reserve tickets waaaay ahead of time.