How to be detached enough to become the desirable rare prize

Maybe I'm wording this wrong but can people give examples of being attainable enough in dating to be desired but unattainable enough to be persued?

I'm not talking anything manipulative but playing a little hot and cold in order to be seen as someone high value enough to pursue. I know living your own life and not constantly being available is the healthy secure way to go, but can someone give specific examples or scenarios for how to do that?

Hopefully this isn't too vague!