My head is more responsive than my body so being spoken to can be very erotic. Stories, scenarios, roleplaying are things I like a lot. There are times when I can get off from just the idea and very little to no physical stimulation.
There are many times when my head is not engaged and it will start trying to control things and shut down the pleasure reactions. I think very fast and it gets in the way of just letting go and experiencing. This is why I think having something for my head to chew on/ponder while the body is enjoying works well for me.
I appreciate a man with a good imagination and story telling abilities. This is one of the reasons I think I am drawn to gamers.