Batgirl is the comic relief out of all of her friends. She is known to be bubbly, cheerful, confident, fun-loving, funny, ambitious, and downright optimistic. She is the one who wants everyone to get along and is often seen as the "cheerleader" in the group because of her contagious enthusiasm and zest for life. However, she is a fangirl and her determination makes her destined to be Batman's future sidekick. She is also a creative problem solver and will use her creativity and her surprisingly analytical thinking to stop the bad guys and be the glue in her friendships.

What she sounds like:

https://youtu.be/JiV4OYcConI?feature=shared