They laughed a lot at the back of the Hall. Was there anything funny?

They are two foreign friends of my friend. They attended the Graduation Ceremony to share happiness with her.

They stared at some girls and made comments on them. They asked why we liked to clap hands all the time. They asked why so many people liked to use digital cameras. And they kept on laughing and talking out loud as if there were only two of them in this place! Everyone in the Hall looked at them, but they didn't care and continued commenting and laughing.

I know you, guys are from the developed world. But it doesn't mean that you look down on others from the developing world. You are not as polite and civilised as you should be.

Why, boys?