Facebook question!!!?

[Iphicrates]

Hi, my questions concerns facebook privacy settings. It came to attention that my mother can see when i comment on other peoples wall posts (who she is not friends with). I don't want to be so rude as to remove her as a friend but it is quite annoying being a grown man and having my mother know so many details about my life. She has already proven she is quite nosey (making comments to me about things she could only have knowledge of by reading posts i wrote on friends news feeds, more than a few times. How do i change it so she can only view my posts, not when i comments on posts from people she is not friends with.


Thank you