This is the first time that one of the Salamanca cousins speaks onscreen.
The entire conversation between Gus and The Cousins at Los Pollos Hermanos consists of just 9 words.
Walt pays Old Joe one hundred hundred-dollar bills for a grand total of $10,000.
Gale initially refers to Walt as "Mr. White", like Jesse does. Walt immediately corrects him, insisting that "Walt" is fine. He never says this to Jesse, indicating that he sees Gale as more of an equal; a fellow chemist worthy of his respect. Jesse, on the other hand, he sees as a subordinate.
After Walter prepares a sack lunch and sits down waiting for Walt Jr. to arrive, there is a fixture on the wall above Walter to the left: two checkerboard tiles linked by the corners, an homage to the "Br" "Ba" logo of the show.