I've been noticing that when I'm talking to women I have no interest in I can easily make them laugh and I feel more confident around them and it just a different vibe than when I'm talking to women I'm interested in, my confidence is less, I don't know what to say to them, I'm more in my head. I want to take my attitude towards women I'm not interested in and apply that attitude towards women I'm interested in.

Any advice?