How to block someone?

well I can't see the posts. I don't know the blog feature well. never use it myself.

It's weird, you can still view them but they aren't listed since I complained. I'm not friends with them but it does seem to stop them 

you don't have any blogs on this site visible to me. I'm assuming because we're not connected as friends on the site. In which case unfriending the person in question will probably stop them posting on your blogs.

Thanks, it's on this site's blogs

Depending on your blog provider there is probably a way to do the same thing there.

Thank you, but they're following me to my blogs

first unfriend the person

1. open the menu and select profile
2. do they appear in the friends sub section? if not click "and X more"
3. click the connect option under the person you want to unfriend
4. then click unfriend

now go to your setting and block public messages

1. open the menu and select settings
2. go down to where it says "Allow private messages from"
3. select "Friends Only"
4. go down and press the save button