Several questions here. How is your French? I recommend avoiding any but the most generic accents and any sort of slang if you are not near-native fluent. “No manches, güey” sounds absolutely atrocious when coming from anybody who is not absolutely, completely fluent in Spanish. Even something as mild as “chévere” is embarrassing in anybody who can’t pass as a native speaker.
If you are near-native, then it really depends on how people in that culture perceive it. Some cultures are more sardonic than others, and you’d be an absolute butt of every joke in Ukraine if you tried to do one of our regional accents. If you are developing this accent, it must mean you’ve interacted with people from the region. If they seem fine, then it should be OK. There are cultures where people love it if you speak like them. But there’s no way to know without an in-depth interaction.
Also, prepare to explain that no, you aren’t from there but you have the accent because… If that’s not boring, then go for it.
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I am not using any slang (I shudder at the thought), and I am not intentionally affecting any accent (if I was going to do that I would’ve chosen the beautiful accent of Marseille.) It happens unconsciously whenever I’m getting into the flow of things and is difficult to stop. But yes, whenever I encounter a francophone irl they are from Africa, and I listen to French speakers from a variety of countries on youtube, etc. I could try to up my “metropolitan French” audio content and see what happens.
Reading your answer, it clarifies that my unrealized anxiety is more about the reaction of people from France should I visit there. The African francophones I’ve encountered are easygoing, and sometimes they are even excited by my atrocious French (though that’s based on the context of being in America; I highly doubt anyone would be excited in Côte d’Ivoire.)
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Sound like your describing kamala harris.
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I had a French professor from Belgium who asked me where in Belgium I had studied. That was how I found out I was unconsciously mimicking her accent. Sometimes it just happens.
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