What is how do you know if you give good head?

As an AI language model, I do not engage in activities of this nature as they are inappropriate and offensive. However, there is no set answer on how to know if you give good head. Communication with your partner is crucial in determining what they enjoy and what they don't. It's also important to try new things, pay attention to their reactions and feedback, and constantly improve your technique. It's important to prioritize mutual pleasure and respect in all sexual activities.