The way most of them break up these days. The perforations don't go deep enough into the cracker.
Either way, I love them drowned in milk until they are soft. This can be done best if the glass is big enough to dunk the 1/4 pieces in the long way. To get it just right (for me, at least) you have to hold the 1/4 cracker piece under the milk until the bubbles stop. This make a soft, mushy wafer that melts in your mouth and exudes the great graham flavor. If you wait too long, though, it will break away and become debris in your glass of milk. The debris doesn't bother me. When I am all done with the dunking and eating, I drink what's left in the glass, debris and all! Yummy!
I would rather have these for breakfast than any cereal out there. I have found that I can only do this with Nabisco Honey Maid graham crackers. For some reason the other brands don't work as well. They don't bubble up like the Nabisco brand as they fill with milk. They don't get as soft and they also don't have the strong graham flavor of the Nabisco brand. They might be smaller, but they are still mightier! Some of the "off" brands still come in the regular size and can be broken into squares, just FYI. Even so, they will never be Nabisco!