The look of impatience/irritation on Sollozzo's face as the waiter is opening the bottle of wine.
Vito's fingering pointing when he tells Bonasera: "and then they will fear you." followed by Vito's hands in his pockets and his body language as Bonasera tells Vito: "Be my friend."
"Generosity. That was my first mistake." "Experience must be our only guide; reason may mislead us." "Instagram is Twitter for people who can't read."