Do happy people become relaxed and easygoing or does being relaxed and easygoing make it easier to be happy?
The second. You cannot be born happy. You can be born relaxed and easy going. Still this does not mean you are happier than others. If you are easy going you are less bothered by trivial things, so in general you can be happier faster than others. But still, hapiness relies on many factors. By being easy going it is absolutely not guaranteed you are happy.