How do you block 1person from post on Facebook?

[KH]

Someone told me you could by clicking the lock and then customize. Well mine don't say customize It says public, friends or only me. Then gives a long list of groups of friends. Please help. Thanks.

[Lana]

If I'm correct, Facebook gives you that long list of friends so you can pretty much choose who gets to see what you just posted. So if your goal is to block one person from seeing that post, you're just gonna have to click on all your friends names except that one person. If you're trying to block this person, completely, from seeing all your posts, go on their profile, and somewhere by the 'friends' button and stuff, there should be another button there, and if you click on it, it should give you the option to report/block that person. You'll pretty much end up figuring out the rest from there.