I generally assume it is best to ask if you think the tone was snippety or cannot tell their tone. Since so much can be lost in translation, lost in type and lost in grammar... I am in such the habit of emoting, almost impossible to not.... Oh, and I need an example, bitch!
I'm fairly expressive, I've had deaf friends and have learned to exaggerate some times. Body gestures and facial expressions in deaf humor... I always thought it was so cute when Pat & Rebecca (she was deaf) would argue and she would close her eyes and sign "I can't hear you!", it would make him so mad. And she said she hated the dumb expressions he would make. I'll give her that, he made very dumb faces. Amazingly enough, more than a decade later, they are still a couple.