how do i write

Check which famous writer you write like with this statistical analysis tool, which analyzes your word choice and writing style and compares them with those of the famous writers.
Inventors of “I Write Like” also make a useful diary app for Mac called Mémoires.
It’s the easiest and safest way to keep a journal on your Mac. It comes with strong encryption, so that your personal diary is safe from prying eyes. It’s very good, try it. Get Mémoires »

Мы внесли изменения для повышения безопасности и сбросили ваш пароль.
You write your novel or project using your own materials: on your preferred word-processing program, by hand, by typewriter, etc. You do not type it directly on the NaNoWriMo site.

References:

http://nanowrimo.uservoice.com/knowledgebase/articles/329165-where-do-i-write-my-novel-do-i-type-it-on-the-nan
http://sindabad.com/idea-offset-paper-a4-65-gsm-pack-of-500-sheets.html