Anything anda want... journal entries, taking notes in class, doodling, menulis stories, songs, atau poems, menulis things down that anda don't want to forget, keep track of your favorit quotes, use it to make lists, make paper airplanes... the daftar goes on. :)
Maybe a diary, atau maybe notes for school atau for hobbies like if anda write. atau maybe anda can use it to draw, that's what my cousin does. Just doodle with it. Use it to do your homework on. Anything anda want!