Captain Holt wears his Commendation breast bar above his World Trade Center Breast Bar. When the WTC bar is worn, it is worn above all other medals, but below the American Flag bar.
Jake gets Boyle an expensive, fancy coffee that Boyle declines. The coffee cup that Jake is holding (and sets down) is clearly empty.
Boyle asks Vivian what kind of dog she would want to get were they to adopt a dog. Boyle adopted two of Cheddar's puppies in Pontiac Bandit (2014).