Expressiveness — cheerfulness, impulsiveness, enthusiasm, carelessness, recklessness in choosing communication partners, emotional significance of social contacts, expansiveness, emotional brightness in relationships between people, communication dynamism, which involves emotional leadership in groups
The opposite of expressiveness is restraint — prudence, caution, prudence in choosing a communication partner. A tendency to concern, worry about the future, pessimism in the perception of reality, restraint in the manifestation of emotions.