It's also very hard for non-native speakers. We don't know what tone is expected when you're expressing an emotion, and to what level. It's kinda part of an acc

It's also very hard for non-native speakers. We don't know what tone is expected when you're expressing an emotion, and to what level. It's kinda part of an accent, but even with good accent, you have to know culture really well, or have a natural ability to mimic others, to be able to fit in.