In general I just eat it as normal (lift burger, place side of burger in mouth, bite, chew, swallow, return to step 1) but for some reason I do it differently at hungry jacks/burger king. I eat it layer by layer - take off the top piece of the bun, eat that, take off the tomato, eat that, take off the bacon, eat that... and so on. I don't do that anywhere else, but from hungry jacks I guess I just prefer the flavour of all the individual bits better than I do as a whole.