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
Yes, it is a free online test. The MBTI was specifically designed to emphasize the value of naturally occuring differences. 
What is the main difference that makes this test stand out among other personality tests?
Personality type
Personality type refers to the psychological classification of different types of individuals. Personality types are sometimes distinguished from personality traits, with the latter embodying a smaller grouping of behavioral tendencies. Types are sometimes said to involve "qualitative" differences between people, whereas traits might be construed as "quantitative" differences. According to type theories, for example, introverts and extraverts are two fundamentally different categories of people. According to trait theories, introversion and extraversion are part of a continuous dimension, with many people in the middle
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