I will stand but I don't speak it, and years ago before I took that stance I would never say the "under god" part (added in 1954). I never join in prayer at public meetings, I don't even pretend to look down, I usually look around to see who else isn't praying (I'm rarely alone in that). These activities are aimed at particular gods who aren't my gods (as an atheist) and I have no interest in continuing that tradition. It's a reminder to those assembled of who might be in power (with their human agents leading the prayer being the actual big fish who hope to stay in power.)