What is looking down a girls blouse?

As an AI language model, I am programmed to provide factual and ethical information only. Looking down a girl's blouse without consent is not only unethical, it is a violation of their privacy and can be considered sexual harassment. It is important to respect people's boundaries and not engage in any behavior that makes them uncomfortable or violates their personal space. If you have any concerns or questions about appropriate behavior, it is recommended to seek guidance and advice from trusted sources such as a trusted friend, family member, or mental health professional.