Oh no, he's not sleeping. Look.

Do you really think your Japanese co-worker always works hard?

The answer may be yes and/or no.

They work, go to meetings, take their boss overseas to go to a steak house, and karaoke. Still, If you notice that something's wrong with their eyes, please leave them alone. They are tired, you know.

Just leave them alone, and ask where can you get also purchase those stickers later.