The Witches Awe and Amazement Quotes

How we cite our quotes: (Chapter.Paragraph)

Quote #10

Mr Jenkins's mouth dropped open so wide I could see the gold fillings in his back teeth. (19.16)

Not too bad a reaction for a guy whose son has just been turned into a mouse. Everyone expresses awe and amazement (good or bad) in different ways, though. What are some of the more common ways to express these sentiments?