Dennis, the electric choke has a coil inside that looks like a spring of sorts. That coil is made of a bi-metal material. In it's cold state will close the choke and as it warms up from the electricity going into it, it slowly opens the choke (using an expanding/ and contracting of that coil. Now, I don't remember if it is wound pretty snug, when cold and starts coming unwound as it heats up or vice versa. At any rate, (IF it is working correctly) the choke will close when you push the accelerator down and release it.
Look, here is how it should go;
Push the accelerator down (squirts gas into the throat of the carb and sets the choke and also sets the idle speed up some)
Start it up and, as the engine (and the coil in the choke) warms up, the choke will slowly open up and the fast idle cam on the carb, will be backing off and the idle speed will decrease.
Are you MORE confused now? I know how some things work and can tell someone, but to type it out like this, I'm all thumbs. IF working right, I think an electric choke is the best way and less trouble. My $0.02.