RealTown's RealTalk

Can someone please tell me how to reply to someone off line if they have not given their email address in the body of their post.  I see posts saying "write me off line" but then there is no email address, so I must be missing something.  Please help, thank you.

Editor's Note
When posting, it is important to leave one's e-mail address and location in the message or signature. If posters don't and you want to contact them, login to the web interface and locate the message; there is a Reply to Sender feature you can use to contact only the sender. Check out the many features you'll find in the web interface.Let me suggest this to everyone: use the MyRealTown feature you will find when you login to http://RealTown.com   You can use the same login credentials you use for RealTalk or your RealTown Blog if you have one.  MyRealTown is your personalized web page that gives you easy access to your online communities (like RealTalk), your Blog, custom RSS feeds, Word of the Day, your Profile page, RealTown mail, RealTown News.....we have many more features about to be added. Oh, yes, it is still free.Login to your MyRealTown today.....while you are there, edit your Profile. You'll be glad you did, especially when you see the ways it will help your business.John