Siri, Punctuated

I have been a little tired of dictating text messages to Siri and having them come across bland - having no punctuation to speak of.  I would ask "How are you?", and she would transcribe "How are you."  On a hunch I tried speaking the appropriate punctuation and she picked it right up.

I tried:

Me: "Where are you.  Where are you question mark.  Where are you exclamation point."
Siri: "Where are you.  Where are you?  Where are you!"

Just for fun, I also did these:

Me: "Are you quote happy unquote question mark."
Siri: 'Are you "happy"?'

Me: "I picked up the kids semicolon they are very whiny."
Siri: "I picked up the kids; they are very whiny."

Me: "Are you colon happy comma unhappy comma or sad question mark."
Siri: "Are you: happy, unhappy, or sad?"

Anyway - pretty cool stuff.

This is on iOS 7 - not sure if it works elsewhere.