Singaporeans are a bit shy

I was on bus 59 to Changi Village,
this Taiwan guy was sitting in front of me
he was talking to his female friend who is sitting beside him.
He called an army guy and said "Open"
while his hand was pointing to the guy's bag.
Ooo, i see, the bag is opened.
Then the Taiwan guy continued talking to his friend
and the army guy kept looking at him,
he wanted to thank the guy, but he didn't get to say thank.
Army guy alighted he bus.
After that, the bus continue moving,
the army guy look in and nodded his head to the Taiwan guy who was looking outside too.
Don't you think the army guy who is a Singaporean is a bit shy?
He wants to thank the Taiwan guy,
but too shy to tap his shoulder or call him.
Just waiting for him to turn his head over....
Hmmmm....who say Singaporeans are cold-blooded,
maybe they are just a bit shy?