My point of view is that emotional restraint is more conducive to interpersonal communication.
First of all, we need to understand what is emotional restraint and exposure. I believe that being emotionally exposed is the habit of expressing one's likes and dislikes, while being emotionally introverted is a calm attitude. We do not deny that the distinction between love and hate is a very cool life attitude, but I have to say that this kind of people also make the most enemies. As the saying goes, harmony is the most important thing. Introverted people often win everyone's love with an inclusive attitude in interpersonal interactions.
Being emotionally restrained gives you more choices in making friends. Showing your emotions is nothing more than expressing your happiness, anger, sorrow, and joy. When you say you like Lu Han, Reba's fans will feel resentful towards you; when you say you would rather laugh on a bicycle than cry on a BMW, survivalists will think you are arrogant; when you say When you don't like someone doing something, it becomes even more powerful to make enemies. Everyone has their own likes and dislikes, and their own values. There are so many people with different views. When you express your own views with your own feelings, isn’t it normal for people with different views to alienate you? But introverted people do not express their likes and dislikes, which not only avoids this kind of situation, but also makes it easy for friends and classmates to interact with them, and they have the desire to talk and share.
Emotional restraint avoids most conflicts in interpersonal interactions. People are selfish, and best friends and buddies can sometimes be annoying, not to mention that most of our friends are just ordinary friends. Therefore, when emotions are exposed, most of them show their dissatisfaction. It is very difficult to maintain a relationship where the other person will be hurt. On the other hand, introverted people will choose to take a step back and use tolerance to buy a period of time for friendship to adjust. Emotional restraint makes people feel more stable and reliable. Saying you like it right away will undoubtedly make people confused and disbelieving, but if it is a sincere smile, it will easily open the window for communication. For China, a country that pays attention to internal affairs, it is difficult for people to trust people who cannot hide things in their hearts. On the contrary, the most reliable advisers in Chinese history are all smiles and don't show their joy. A reliable image that is worthy of others' trust is very beneficial to interpersonal communication. To sum up, I think that being emotionally restrained is more conducive to interpersonal communication.