if the name is from a language you both speak (like the bob example) and the difference is only how you enunciate then dont worry about it. People dont care if its just a regional thing. Otherwise you should copy the pronunciation not the accent. idk if that’s what you mean but for example don’t do an italian accent in your english voice to “sound more italian” you’d get weird looks. Enunciate (the name only) the way they do.