Imitate foreign accents convincingly

Alright, so that’s more yooper but it’s in a different state.

I do a decent Russian accent, but as far as British, Irish, Scottish, Australian—no way. I can’t do a New York accent to save my life. Indian? Spanish? Portuguese? German? Ahhnold? Not really convincingly. The crown jewel of my efforts would be to perfect a Turkish accent, which is surprisingly difficult to nail down.