If you’re going to make a show of it by grasping hands and bowing heads and praying out loud, it will depend on where you live. If you could be martyred for such things, it might be wiser to be martyred for a greater cause. Praying does not have to be “out loud” for God to hear it.
Matthew 6:6 New King James Version
“But you, when you pray, go into your room, and when you have shut your door, pray to your Father who is in the secret place; and your Father who sees in secret will reward you openly.”