There are many different kinds of fangirling/boying. Here are a couple of things that happen when a fan is fangirling/boying:

  1. Waving their hands around and jumping up and down, is always the start
  2. They start to scream with excitement and smile a lot
  3. As they talk they will increasingly talk faster
  4. They will stop talking and try to catch their breath
  5. They may have some tears on their face and it’s okay they’re not crying they’re just really happy
  6. But if they see their favorite actor or actress then their whole face will start to tear up and making themselves speechless and crying