People with low emotional intelligence don't realise how others can misinterpret their words. For example, when you say, "I really don't understand what's so difficult here", others may interpret it as an expression of your indifference to their feelings. Think about what impression you want to make and how you want people around you to feel. Then formulate your thoughts accordingly.
Emotionally intelligent people react wisely. First, they always listen to the other party and calm themselves down. Taking a pause before reacting is not the same as not reacting at all. It's a matter of giving space to yourself and others.
Learning to perceive situations through the eyes of others is important; however, this does not mean you should ignore your own feelings. On the contrary, you should consider both perspectives and look for overlaps.
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Article source Harvard Business Review - flagship magazine of Harvard Business School