Curious about the ECU learning your driving habits

Hey Guys,

So, I was just thinking, and I am curious about the whole idea of the ECU learning your driving habits. I have only gone through one tank in my brand new truck, the gas that was filled up by the dealership, and I got about 19mpg. So, I was pretty happy with that, but I did drive like a grandpa haha.

My questions is, if the ECU learns that I drive like a grandpa will it not let me pick up fast when I want to? Will it always pick the lower shift points? Are you better off driving it like crazy at the beginning, and then starting to drive like a grandpa later to save gas?

Not a huge deal, just was curious and thought I would ask the TW experts!