I am a female, 01 December 1995. The guy is 21 August 1993.

According to your description, you are not familiar with this guy right now. So, the not-so-intimate relationship may be quite hard for you to calm him down when he is angry. The first thing you should do is to get his attention and then, further develop the relationship.
The way to get his attention varies depending on the way you know each other. If you are in the same company, it is advised you work hard and impress him with your excellent performance. If you are introduced to each other, you may figure out your common interests and start the talk with related topics.
However, trying to calm him down when he is in a fit of anger may be quite difficult. If dealing inappropriately, things might get worse. But you can persuade him afterwards to let him know that he really hurts the other people’s feeling. He should understand and the situation could get improved. Good luck!