I friggin' mumble, that's what I do. And I let the other kids in the class, the ones that believe in God, say what they want instead of letting my arsehole father and two-and-a-half imperial judges change the Pledge of Allegiance for fifty million Americans (and several million illegal aliens).
}:-)4
If you don't worship any Gods, then stay politely seated, like a kid in my class did.
If you are worried about the name of God being too sacred, have no fear "God" is not His name YHWH is known as the Tetragrammation, and YHWH is the four consonants that stand for the original name which, even thousands of years ago, had been forgotten.