WHY does carefree, fun, and confident attitude work for women? I want like an in depth answer.

For example, I could be jobless, no real social status, but if I'm in a great mood or a bit drunk, I can get a hot chick to be into me. She responds to this confidence.

Why though? What are the girls REALLY seeing in the guy who acts like this?

Btw the jobless story is absolutely true.