how to talk dirty??

I’ve been hooking up with this guy for a few months now. The first time we hooked up i was dirty talking, i’ve done it before with other guys but they have always been vocal back to me. After that i never talked dirty because i felt like he wasn’t into. The last time we hooked up the other night he wanted me to talk dirty but i got nervous and shy all of a sudden and couldn’t think of what to say. What are y’all’s guys favorite things you say when talking dirty?