more helpful signs featuring doraemon

I noticed this collection of escalator etiquette signs today (on an escalator I use almost daily -- how did I miss this?!). They happen to feature everyone's favorite robo-cat from the future, Doraemon (or Xiao Ding-dong, if you know him by his Chinese name). I might have to go back and take some better shots of this, because it's hard to make out his facial expressions in some of these. However, I'm pretty sure he's doing a winky-smile in the top-left sign. And I'm almost certain I see a winky-frown (just like this one) on his face on the top-right sign.