If you want to use spoiler tags in your posts, (they hide information until you click the button that says reveal), then you do it like this... If you want to hide the words boo for example, put the word spoiler inside these tags like so [spoiler ], but without the space, then put your post after the spoiler tag, then finish it like this [/spoiler ], again without the space. The actual post will look like this... [spoiler ]boo[/spoiler ] (without the spaces_ It will look like this... Spoiler boo