Article continues below advertisementKate Middleton opted not to curtsy to Queen Camilla during a state visit - even though Prince William bowed to his stepmother.The Duke and Duchess of Cambridge met Nigerian president Bola Ahmed Tinubu, and his wife, Oluremi Tinubu, at a hotel in Windsor on March 18.Article continues below advertisementTap Here To Add Ok Magazine as A Trusted SourceSource: MEGAKate Middleton chose to curtsy to her stepmother-in-law.A little while later, Kate, 44, William, 43, met with Camilla, 78, and King Charles, 77, for a state greeting.