Do you enjoy talking to strangers? If you, I got new for you. Extraversion tends to mainfest itself in outgoing talkative and energetic behavior
I do enjoy. I see myself as an extrovert person who always wants to be in the company of people 
A great way to know for sure is to take the Myers-Briggs Type Indicator test. Its was constructed by Katharine Cook Briggs and her daughter Isabel.