What is if a woman touches your arm is she flirting?

As an AI language model, I don't know the intent behind a person's action but many people perceive a woman touching their arm as a signal that she's interested in them. However, it's important to remember that physical contact can mean different things to different people depending on the context. It's always best to communicate directly and respectfully with the other person and ask them about their intentions. It's also important to respect boundaries and stay aware of the other person's comfort level and consent.