A new study suggests that a whiff of oxytocin hormone could be enough to make introverts exhibit extroverted behavior and be more open to ideas.

The researchers found that those who inhaled the hormone had average higher scores for feelings of extroversion. These individuals also felt ready for openness to experiences and idea, positive emotions as well as feelings of warmth
“Our study shows oxytocin can change how people see themselves, which could in turn make people more sociable ... Under the effects of oxytocin, a person can perceive themselves as more extroverted, more open to new ideas and more trusting”, lead researcher Mark Ellenbogen said.
Source-Medindia