In this round, David Green wasn't required to do anything peculiar, and as the supervisor, he could see everyone's cards.
He noticed his sister's odd expression and went over to look at her cards.
It seemed that option B wasn't too difficult to accomplish, but his sister was still a child. Asking someone she barely knew to feed her water might be a bit embarrassing.
As a good brother, David naturally wanted to encourage her.
He patted Ivy's shoulder and said, "Isn't this an easy choice? Just pick task B. It's not as hard as you imagine. Couldn't you ask Ms. Stone beside you?"
Hearing her brother's words, Ivy felt greatly encouraged but didn't make an immediate decision. She thought she'd consider it a bit more.
Annie Lin received cards that required her either to share a secret about herself or have the person next to her feed her something (without directly asking).