In English-speaking countries, intensity is a sign of being low-class. People who speak loudly, excitedly, wave their hands around a lot, make a lot of ruckus, exhibit a lot of public emotion are more likely to be found in a trailer park than at an expensive restaurant or a social gathering of academics.
People of higher social classes, on the other hand, speak monotonously, don’t gesticulate very actively, and exhibit muted affect in public.
In Russian-speaking societies, it’s the other way round. Unless they get violently drunk, the humble classes speak quietly and monotonously, their public affect is flat, their speech is uninflected, their movements are constricted. One of the reasons they get drunk is to allow themselves to step outside of these boundaries.
Members of intelligentsia, on the other hand, speak loudly, excitedly, their emotions effervesce, they easily become overwrought. They make more noise discussing Silver Age poetry than an episode of Maury. Emoting in a public space is an entitlement of their social status.
This is a result of a very different philosophy of social class. English speakers value self-control and self-discipline so much that it becomes its own reward. Russian-speakers impose self-control as punishment on the less deserving.