After I get a number from CMB or Tinder, when do you know when to sexualIze the convo?

I usually go off body language but that’s out of the picture when texting.

In a convo where I sent “wouldn’t have pegged you as the dominatrix type”. She replied “there’s many things about me that would surprise me”

I could care less about the actual girl. I’m really after the frame of mind I should be approaching these situations and how that percolates into my texts.