When Gus grabs Shawn to turn him away from Juliet, he grabs Shawn near the elbow. In the next shot, this same hand is near Shawn's shoulder.
In what is no doubt an inside joke for Mormons, a girl in a BYU shirt is shown drinking in a bar. Brigham Young University's honor code binds students to abstain from alcoholic beverages, on or off campus. Even if BYU students did go out drinking, they would hardly wear a shirt identifying themselves.
At the murder scene, Lassiter says the .38 special round is used in revolvers and is no stranger to semi automatic pistols. The .38 special round is almost exclusively used in revolvers, as very few semi auto pistols ever used this round. The 38 super round was used in some semi automatic pistols, such as the one shown in the program.
Near the end, when Shawn and Juliet discuss commitment, a couple behind them -a man in a white shirt and a woman in a blue denim dress- can be seen walking toward the camera, then away from it, probably in a loop.