take friend off facebook?

[PatrickGreenhaw]

don't want them to be able to see anything

[savannah]

Unfriend them....

[abraXus]

then you just block them - they wont be able to see anything you do anymore

[Ennamul Khan]

You can block them or penfriend them

[I Bizzy]

Facebook has a block option. Once blocked you nor them can see each other's walls anymore, see each other comments on shared friends statuses, nor can you message each other. It's as if they become a ghost.

[cutto]

Block them so they cant be able to see you.
Even cant message you or see your comments
OR if you want to be your friends RESTRICTED to Put their name in
restricted list so they will be your friends but become as public and can only see
what you share with public

[Angeleyes]

You could unfriend them or add them to your restricted list or block them, so then they cannot see anything about you, send messages or look at your comments.