After Riker rescues Troi from a discussion, the Ferengi captain approaches Lwaxana, she turns to face him and her earrings start rocking back and forth. In the next shot, her earrings are at rest.
When speaking with Lwaxana and Deanna in their cell, DaiMon Tog's prosthetic head goes up and down as Frank Corsentino raises his eyebrows.
In the opening gathering in Ten Forward, an Antican and a Selae are shown in the background, and they are not exhibiting any signs of hostility. It is highly unlikely that the two races would have resolved their numerous differences in the two years since Lonely Among Us (1987), when they refused to be on the same deck as each other, let alone the same room.
Reittan Grax makes a variety of pronunciation errors in the first scene when speaking with Picard and Data in Ten Forward; notably, he refers to his race as "we Betazeds". The planet is Betazed, but people from the planet are called Betazoids. He also pronounces Deanna Troi (pronounced like "Banana") incorrectly (pronounced like "sauna").
When Lwaxana and Deanna are beamed into the cell, au naturel, the camera is pointed a bit too low on Lwaxana, twice causing a slight breach of TV standards.