As an atheist, I do not pray, however sometimes I will go to someone's house or to a restaurant for dinner and the others at the table will hold hands and pray.
When this happens, I politely decline and abstain while they do their thing.
Is it rude for an atheist to politely decline to participate in a hand-holding group prayer, or is the act of hand-holding prayer a form of religious coercion and itself rude?