I don't disagree. Communication goes two (or more) ways. My point was that if someone's introverted or has anxiety issues, it is very easy for their actions and words to be misinterpreted or even outright overlooked by non-introverts. If you're used to people gushing for hours about how awesome something is, thanks a ton, let's do it again, etc., it's very easy to miss out on a simple "Thanks, this was fun." Neither version is wrong, but it can be confusing, or even rage-inducing, if you're expecting one and get the other.