Try to Display Positive Emotions. There’s a thing called “emotional contagion” where people are strongly influenced by the moods of others. It’s an unconscious thing, but if you’re around happy people, or just one happy person, it tends to spread. So try being that happy person. As we try to naturally mimic the other person’s movements, facial expressions and overall tone, we start to feel what they’re feeling. And we all like feeling good.