I've noticed that there's a paradox when you actually like to be open and friendly to people, but they tend to react with annoyance or rejection.
You respond with uncertainty and eventually lose the desire to talk to people, who in turn think you're stubborn and—as they say in German—short-tempered.
As a result, you eventually find it comfortable to stay in a kind of “comfort zone,” but then you lose the ability to communicate properly with people—or perhaps more accurately, to make small talk.
In short: I should move to Finland, if the language weren't so difficult to learn 😃
