Am I an introvert or an extrovert?

I am an extrovert person because I like to talk with other people. Also, I like to stay with many people. When I stay with many people, I feel delight. On the other hand, I hate stay alone. If I stay alone, I will just feel sick and sad. I like to be social with other people. For instance, everytime when my elementary school classmates want to have a party, I will be the leader to connecting with everyone, and plan the party. In addition, I always like to make a new friend. As a result, my friends always said that i am international social adviser because I have a lot of friends from different country. I think that because of my personality, so I could know more people, and make more friends easier.