Aghast!
The entire crowd were thunderstruck, appalled, rendered speechless, gob-smacked, horrified, shell-shocked, and thousands of things that meant pretty much one thing:
They were SHOCKED!
The first person to take action was a fat man with a rather low cultivation base. When he recalled, earlier than the others, how he cursed and degraded this unknown expert, his heart throbbed with intense fear.
He soundlessly screamed as he ran away. He stumbled and knocked away quite a few people in his way, but he didn't care.
His actions caused quite a few people to wake up from their deep states of shock. Only then did they finally react.
"Holy shit! A God?!" One female cultivator screeched, her words were particularly piercing.