How do I unblock someone on Facebook?

To unblock someone on Facebook, follow these steps.

1. Go to your Facebook account and click on the down arrow icon in the top right corner of the page. Click on "Settings" in the dropdown menu.
2. Click on "Blocking" in the left column.
3. Under "Blocked users" you will see a list of people you've blocked.
4. Click on the "Unblock" button next to the name of the person you want to unblock.
5. Click on "Confirm" to unblock the person.

Note: If you unblock someone, you won't be able to block them again for a few days.