Nene and Korea xiaodi are waiting for food, aru~

I saw this while waiting for my ride to Korea xiaodi's place, www.sanrio.com/hellokitt...

Can anybody tell me why people use (()) and []?

xiaodi, promise you will be good?

livingsootdaze What do we play?

Nene and Yao love panda, aru~

Has anyone seen the other me? hetalia.wikinet.org/w/im...

Brothers and Sisters aru~ 27.media.tumblr.com/tumb...

Aru~