Possible Clues:

• No firm believer should be acting so badly
• One believing nothing can be known of the nature of God
• Without certain knowledge, it's costing a bomb
• One doesn't know about acting so strangely
• Holding that knowledge of Supreme Being is impossible
• Sceptic — unbelieving
• A sceptic acting so strangely
• It's seen in dance backed by someone like Pyrrho
• Person acting so dubious?
• Non-believer taking short moment to follow a number from the East