Post Blank Scraps

What to know how to send blank scraps by writing a blank scrap or a blank post in a community.
For writing blank scrap, follow the steps:
1) Open any scrapbook.
2) Write [i] in the scrapbook. (you can also use [b] & [u] )
3) Do NOT write anything else in the scrapbook, and submit the scrap.
That’s all.
Now go and impress your friends by sending invisible scraps in orkut.