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.
Haven't heard about it before. Is it available online? I have taken other tests, but not this one
Myers–Briggs Type Indicator
The MBTI was constructed by Katharine Cook Briggs and her daughter Isabel Briggs Myers. It is based on the conceptual theory proposed by Swiss psychiatrist Carl Jung, who had speculated that humans experience the world using four principal psychological functions – sensation, intuition, feeling, and thinking – and that one of these four functions is dominant for a person most of the time.
The MBTI was constructed for normal populations and emphasizes the value of naturally occurring differences. "The underlying assumption of the MBTI is
was younger I was more uncomfortable with that side of myself, being outgoing and talkative. I realized along the way that was how you get people to know you. I've grown to be a more open person."
When that he was asked about playing gay characters in multiple roles, Willett responded, "I want to play all different kinds of people; gay or straight. For example, when you go in to play a serial killer, you don't question if it meets your physical or moral standards