[General] What makes it so funny?

[Silverobama]

Hi.

I am an environmentalist and I pick up trash every day in my spare time. Today when I was holding my trash bag and picking up trash, two young girls (looked like they are 18) were laughing. I didn't know why they were laughing so I asked them "What makes it so funny?" Is my question natural? The following is a picture of the plastic bag.

 

[jutfrank]

We're likely to say What's so funny?

 

[Rover_KE]

Alternatively: 'What are you laughing at?'

 

[tedmc]

Or sarcastically: Very funny.

 

[emsr2d2]

I'd be inclined to be a bit more sarcastic (no surprise there!) I'd say "Oh yeah, it's hilarious that I'm having to spend my free time picking up other people's rubbish. Maybe instead of laughing, you could help me!"

 

[tzfujimino]

I didn't know why they were laughing so I asked them "What makes it so funny?"

What did they say then?

 

[Silverobama]

What did they say then?

Nothing then left.

 

[Rover_KE]

Nothing. They left.

:-|

 

[emsr2d2]

Silverobama, if post #7 was meant to be a shortened form of "[They said] nothing then [they] left", it wasn't clear.