I’m not good with masking my emotions sometimes, although I do try to process the things before I take any action.
My face and body language on the other hand can reflect what I’m going through at the moment.
Are you aware of any ways to control yourself under difficult situations (apart from things like meditation) ?
Working in customer service or retail helps, once you learn how to put on your happy work face, it’s easier to do in other occasions.
My maths teacher is like that at school. He’s always smiling even though he’s angry judging by their voice and context.