I slow down and I pull pull to the right as soon as I can to let them pass, most of the time I can pull over far enough that I don't need to stop.
I will admit that I was a tailgater in my youth, I was always in a hurry for no particular reason.
Let's just say that I never had to worry about tailgaters back then.
Today I am much different, I still like to drive fast, but I am never in a hurry. If I come up behind someone that is going slower I leave plenty of room, at minimum a 3 second gap.
It also annoys the piss outa me when people get on my A at a stop light. I have a manual shift, when they do this I generally let my car roll back just to scare the piss out of them.