(I am not asking how to block my posts on my timeline.)
I am asking how I can block my activity, such as posting in open groups, making comments on people's posts, adding a friend, liking a photo, liking a post, etc., from people seeing it in their news feeds? I don't want people seeing my interactions with other people.
Best Answer
In short: You can't. Currently, there is no way to completely hide your activity on Facebook from everybody.
Which bits of your activity that shows up in other people's feeds is based upon the privacy level of the item you are interacting with.