how to turn off facebook news feed

I don’t want anyone else to see when I add a new person as a friend. But that actually comes up as a status message for all my ex-girlfriends to see now.
How do I turn that off on facebook? It used to be obvious, but I can’t figure out how to disable it now. How do I change it so that no one sees that I added a new person in their news feed?

And a related question – how can I turn off the ability for other people to see my list of friends?

Wow. Does the lack of answers mean it’s no longer possible in facebook?

How to hide your Facebook friends list

For your first question: it looks like you don’t have that option any more, meaning Facebook no longer allows you to control what makes it to a news feed.
Another GQ thread with a similar question: Has Facebook disabled this privacy setting?