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