What is she acts different around me?

As an AI language model, I don't have any specific information about whom "she" refers to. However, in general, a person may act differently around someone they like or are attracted to. They may become nervous or shy, or try to impress the person by showing their best qualities. Alternatively, they may be more relaxed and casual around someone they are comfortable with or consider a friend. It's important to approach such situations with empathy and respect, understanding that everyone has their own unique personality and behavior patterns.