Tell all the people in your realms about the wonder of JuNoWriMo! Post to coffee shops, libraries, book stores, cafes or anywhere writers might gather. But mind the golden rule of bulletin boards and always ask permission before super-glueing pinning it to the wall, etc.
Here for your downloading pleasure, the 2014 JuNoWriMo flyer:
JuNo Flyer (Click to download the .pdf)