While Prince William and Kate Middleton's kids had a lot of adorable moments during King Charles III's coronation, it may have been Prince Louis' candid reactions that took the crown.

Like when the 5-year-old was spotted letting out a big yawn during the May 6 ceremony at Westminster Abbey in London. Or, when he was seen looking towards the ceiling, gazing up at his mom and pointing something out to his 8-year-old sister Princess Charlotte.