A good test would be "ice eyes garage sorry resources".

For me it would be something like /ʌɪs aɪz ɡəˈɹæʒ ˈsɔːɹi ˌɹiˈzɔɹsɪz/.

https://en.wikipedia.org/wiki/Standard_Canadian_English

Your method wouldn't detect me. But you'd get me when I pronounced "Z" as "Zed".

Sadly my last name starts with a Z so after a decade of living in the US, I lost the "zed".

Most people who refer to "North Americans" collectively are Canadian. People in the US can forget Canada exists. People in Canada can't forget the US exist and so they need a term that includes both.

? Americans refer to the continent as "North America."

The only real giveaway to me that Trailer Park Boys is Canadian is how they pronounce the word “sorry”. Like SOW-ry rather than SOH-ry.

easy way is "figure it out" -- that seems to be common in Alberta to Montreal

strong emphasis on the out as "ooot" -- "figure it ooot, bud"

Mine's listening for proe-ject instead of prah-ject.

Do you call program “prah-gram”? Do you call pro shops at the golf course “prah shops”? I will die on the proe-ject hill.

Also if they refer to a washroom instead of a bathroom or restroom.

car door gets me