Thanks for the examples of nuance in ASL, Zed.

Another interesting phenomenon in the language is how names are handled. Unfamiliar names can be finger-spelled as necessary, but folks also have name-signs. For example, one friend who signed, whose name was Hughie, his name sign was the finger-alphabet 'H' tapped on the signer's upper left arm. My name was a 'J' made on the right side of the signer's face near the check-jawline (because I have a beard). Names and nicknames can all be quite inventive.

I'm not sure about the existence of a Canadian sign language, but I know there are British and Australian sign languages. The US shows quite a lot of dialect variation in ASL.