Sheldon corrects someone’s grammar or fact
Howard tries to flirt awkwardly
Bernadette’s high-pitched voice comment
Elevator mention
Howard mentions his mom
Penny misunderstands a scientific concept
Roommate agreement
Dungeons & Dragons
Sheldon knocks three times before entering
Amy talks about her work with monkeys
Raj struggles to talk to women
Penny says ?Oh, sweetie?
FREE
Raj talks about Cinnamon
Video games
Sheldon sits in “his spot”
Soft Kitty
Cheesecake Factory
Star Trek reference
superhero t-shirt
A whiteboard full of equations is shown
Comic book store
Bazinga!
Leonard adjusts his glasses
Nobel Prize is mentioned