Recently, I did this experiment to a really hot girl at my gym. I told her that I had a diarrhea at party and she was at first surprised that I'm telling her this. After that I started indirectly with positive things about myself and it went well as she didn't perceived me like I was trying to make something with her.

Indirectly, I told her that I don't give a fuck about her by saying about diarrhea.