How can use shamless in a sentences?

It seems you're asking how to use the word "shameless" in a sentence. Here are a few examples:

Positive:

* "Her shameless enthusiasm for karaoke was infectious and brought laughter to everyone in the room."

* "The company's shameless dedication to customer satisfaction made it a clear leader in the industry."

Negative:

* "He had the shameless audacity to ask for a raise after missing half of his deadlines."

* "Their shameless exploitation of the workers was exposed by the investigative journalist."

* "The politician's shameless lies were finally revealed, leading to a public outcry."

Neutral:

* "She was a shameless flirt, always attracting attention with her charming personality."

* "The artist's shameless self-promotion, using social media, earned her a large following."

Note: "Shameless" is often used to describe behavior that is considered morally questionable or lacking in self-awareness. It can be used in both positive and negative ways, depending on the context.