Firstly, there is nothing wrong, at all, with being a lurker.
By all means, stay a lurker as long as you like.  That's fine.
While we are at it... Thanks for lurking.  It's a compliment.

I just thought I'd try my luck at getting just one lurker
to visit and speak to me?  I'd really enjoy becoming friends.
Come on, you can do it.  And, I think you may enjoy it.