Shawn struggled to speak and understand Spanish to the street vendor. In real life, James Roday Rodriguez fluently speaks Spanish
At the beginning of the episode, Parminder Nagra is seen to bend a shot at goal past Dule Hill. Parminder came to fame in the movie Bend It Like Beckham (2002) where she played a fab female footballer along with Keira Knightley.
Spot the pineapple! Painted on a fruit stand sign in Mexico. Only seen for a brief moment as Shawn, Gus and Jules are walking after they arrive with the chickens on the roof of the car
Shawn mentions to Juliet that they should start going by one name. The final name he mentions is "Shules" the name that many Psych-o's, or psych fans, would call the two, as their relationship was always highly anticipated.
Lloyd, played by Jeffrey Tambor, says that there shouldn't be a border fence separating Mexico an the United States. In the fourth season of Arrested Development (2003) George Bluth Sr. (also played by Tambor) tries to get a border wall built as part of a political campaign.