See if you can catch yourself being too quiet for too long and speak up, smiling and saying something like, "I'm sorry, I'm just thinking about what you just said". People need feedback from us, not just so they do not misinterpret but so they themselves feel better about themselves and what they are experiencing, that it is "correct" or not.

You cannot clear up another person's misinterpretations without yourself communicating in the moment. Not speaking is a comment and that you are having "difficulties" is a negative statement in itself. No, you may not be angry (or you may, how does anyone know? Just saying you are not, later, has no bearing on the moment) but if you are too much in your own head that you don't interact, then that is usually fear/anxiety (of not getting it "right" or of being misinterpreted, etc. :-)