This meme of Missy commenting that being good at math doesn't matter since she has beautiful hair perfectly sums up her view on academic things as opposed to Sheldon's.
"Fiddle-faddle" and "poodle poop" as swear words were pretty tame and fitting for his age, especially considering his personality.
Despite studying a book on Jiu-Jitsu, his best defense under attack is to throw the book at his opponent instead of using any of the moves shown.
George jokes that Sheldon isn't like any other nine-year-old from Earth.
Before his first day in high school, he comments that rather than being intimidated by his intelligence, the other students would be so impressed by it that they'd appoint him as their leader. In response, Mary mumbles a funny but accurate prayer.
While Missy wants to watch something fun and entertaining, Sheldon insists on switching the channel to something more intellectual, to which she complains that TV isn't for learning.
Sheldon unintentionally says something funny, which gets everyone else laughing, making him realize he's hilarious. The meme also shows something that rarely happens on Young Sheldon. Most times, people are laughing at Sheldon and not with him
