Gabrielle Rubin, founder of Female Awareness, has been taking martial arts classes for the past 23 years. She thinks it's important for all women to take a self-defense class. Her classes teach the importance of being aware of your surroundings. Here, she tells us how to react if we think someone's following us.

Gabrielle Rubin was born and raised in New York City and has been practicing martial arts for about 23 years. She started taking martial arts classes because she was the skinny kid with a big mouth and one time she couldn't back it up. She remembers feeling afraid and never wanting to feel that way again, so she began taking martial arts classes. After years of martial arts, she founded the company, Female Awareness, which teaches self-defense classes to people all over NYC.