I'm a women and would love to hear a little bit about the other side, most posts are about how to pick up women, but I'm interested how to pick up men or women as a women.

I have noticed when going out and not thinking about getting in contact with someone, I don't know how I end up taking to people I find attractive and sometimes hooking up. But if I go to a Party/bar saying "I want to meet someone, flirt a little bit and see what happens" nothing happens, I don't even talk to new stranger. I want to change that, I don't want to sit around and wait until someone approaches me, I want to be able to be proactive too, I want to signal that they should come. I know back in the days lady's would drop their handkerchief and men would pick it up for them and start conversation. What are modern ways? I don't like the cold approach, it should be smooth.